Mga kalkulador sa matematika at estadistika

0-9

• 13th Month Pay — Non-taxable Cap (₱90,000)
  Kalkulahin ang di-natatayang bahagi (hanggang ₱90,000) at ang pasok sa buwis na bahagi ng 13th month at iba pang benepisyo. Edukasyonal lamang.
• 2D Geometry Calculator (Area & Perimeter: Rectangle, Circle, Triangle, Trapezoid, Regular Polygon)
  Quickly compute area and perimeter for rectangles, circles, triangles, trapezoids, and regular polygons.
• 2D Graphing Calculator — plot up to 3 functions with intersection & extrema steps
  Plot up to three functions, detect x-intercepts, intersections, and extrema via bisection and numeric derivatives. Includes zoom, pan, shareable URLs, and transparent step logs.
• 3D Geometry Calculator (Sphere, Cylinder, Cone, Prism)
  Compute volume and surface area for spheres, cylinders, cones, rectangular and regular prisms—with unit controls and a shareable result link.

A

• Acid–base titration curve calculator (with steps)
  Plot strong/weak acid–base titration curves, highlight buffer regions and equivalence volumes, and review Henderson–Hasselbalch or hydrolysis steps with shareable URLs and CSV export.
• Anggaran PCB（Potongan Cukai Bulanan）— pendidikan
  Anggarkan PCB bulanan berdasarkan gaji kasar dan kadar anggaran (%). Untuk pendidikan/rujukan; kadar sebenar tertakluk kepada jadual LHDN.
• APR↔EAR interest rate converter para sa loans & savings | CalcBE
  I-convert ang nominal APR sa katumbas na buwanang, arawang at effective annual rate (EAR), o baliktarin mula sa periodic rate pabalik sa APR para maikumpara ang loans, credit card at ipon. Libre at browser-based na ca…

B

• Base & Bitwise Calculator (Bin/Oct/Dec/Hex) | CalcBE
  Magpalit ng mga halaga sa pagitan ng binary, octal, decimal at hexadecimal, magpatakbo ng AND/OR/XOR/NOT at bit shift, at kopyahin ang maibabahaging URL ng resulta.
• BMR & TDEE Calculator (Araw-araw na Calorie)
  Tantyahin ang basal metabolic rate at total daily energy expenditure gamit ang Mifflin–St Jeor at antas ng aktibidad. Impormasyon lamang.
• BTW 21% — netto ↔ bruto（snelle omzetting）
  Reken prijs netto en bruto om bij BTW 21%. Deel resultaat met een link. Afronding: dichtstbijzijnd / omhoog / omlaag.
• BTW 9% — netto ↔ bruto（snelle omzetting）
  Reken prijs netto en bruto om bij BTW 9%. Deel resultaat met een link. Afronding: dichtstbijzijnd / omhoog / omlaag.
• Buffer pH (Henderson–Hasselbalch) with steps — design, additions, capacity
  Compute buffer pH with the Henderson–Hasselbalch equation, design mixtures for a target pH, and model strong acid/base additions with buffer capacity and step-by-step logs.

C

• Calculator ng pagkalat ng hindi-tiyak — suma, produkto, power at pangkalahatang function (may mga hakbang)
  I-propagate ang hindi-tiyak na y ± u_y gamit ang gradient×covariance, suporta sa correlation matrix, beripikasyon ng Monte Carlo, at mga template para sa suma/prod/power kasama ang ligtas na expression parser.
• CI & Hypothesis Test Wizard (Means & Proportions)
  Build confidence intervals and hypothesis tests for means and proportions. Supports Welch, paired, Wilson, Newcombe, and visualises p-values.
• Complex Number Calculator — a+bi ↔ polar with steps
  Convert between a+bi and r∠θ, perform complex addition, subtraction, multiplication, division, powers, and list n-th roots with a live Argand plot and step-by-step breakdown.
• Conic Sections Explorer — standard form, focus, directrix & eccentricity (with steps)
  Classify a general quadratic, rotate to eliminate xy, complete the square to standard form, and visualize focus, directrix, and asymptotes. LaTeX/URL/CSV ready.
• Coordinate Geometry Toolkit — distance, midpoint, slope, lines & circles (with steps)
  Compute distance, midpoint, slope, line equations, circles, and intersections with full working shown beside the results and a live coordinate plane diagram.

D

• Descriptive Statistics + Box Plot & Histogram (with steps)
  Paste a dataset or upload CSV/TSV to review descriptive statistics, histogram, box plot, outlier counts, trimmed mean, CSV export, LaTeX summary, and documented steps.
• Dice Roller para sa d4-d100 roll na may PNG pagbabahagi | CalcBE
  I-roll ang d4-d100 gamit ang mga mabilisang button o notation tulad ng 2d6+3, tingnan ang mga kabuuan at breakdown, panatilihin ang history, at magbahagi ng text o PNG card nang direkta mula sa iyong browser.
• Differentiation Calculator (steps, tangents, numeric)
  Compute symbolic and numeric derivatives for single-variable, parametric, implicit, and partial derivatives. See Richardson extrapolation steps and tangent lines instantly for teaching and study.
• Dimensional analysis & unit consistency checker (with steps)
  Parse compound units, verify equation consistency, and generate Buckingham Π groups with step-by-step logs, CSV export, and shareable URLs.
• Distributions Pack Calculator — Binomial, Poisson, Student's t, Chi-square with Steps
  Compute PMF/PDF, CDF, quantiles, and exact confidence intervals for binomial, Poisson, Student's t, and chi-square distributions with step-by-step explanations, graphs, CSV, LaTeX, and shareable URLs.

E

• Eigenvalues & Eigenvectors (2x2, 3x3) — with steps
  Compute eigenvalues, eigenvectors, residuals, and multiplicities for 2x2 and 3x3 matrices with analytic, rational-root, and QR iteration explanations.
• Empirical & molecular formula calculator (with steps) — percent composition, combustion analysis, hydrates
  Four-mode chemistry calculator extracts empirical and molecular formulas from percent composition, combustion analysis, and hydrate data, with detailed How it's calculated logs, CSV export, and shareable URLs.

F

• First-order ODEs (Separable & Linear) + Direction Field — with steps
  Visualise separable and linear first-order ODEs with slope fields, Simpson integrals, integrating factors, numeric inversion, RK4 checks, CSV export, and shareable URLs.
• Fraction Calculator (Reduce, Mixed Numbers, Common Denominators)
  Enter mixed or improper fractions as-is, perform addition, subtraction, multiplication, or division, and instantly view reduced results, mixed-number forms.
• Fraction Simplifier & Mixed Number Converter (Steps & Visuals)
  Reduce any fraction, convert between improper and mixed numbers, and review Euclidean GCD steps with pie and number line visuals for lessons.
• Function Transformations Explorer (isalin, scale, sumasalamin) | CalcBE
  Ayusin ang A, B, H at V sa Y = A · F (B (X - H)) + V upang makita kung paano nagbabago ang mga pagbabago, pag -aayos at pagmumuni -muni, pagkatapos ay ihambing ang orihinal at binagong mga curves sa magkatabi.

G

• GCD & LCM calculator – greatest common divisor tool | CalcBE
  Compute the GCD and LCM for up to 32 integers using Euclid’s algorithm and successive reduction. Paste values and copy a shareable result link.
• GCD & LCM Calculator (with Steps) — Extended Euclid, Fraction/Ratio Simplifier
  Trace every a = q·b + r step, explore extended Euclid back substitution, simplify fractions or ratios, factor numbers, and share LaTeX-ready results with teacher notes.
• Geometry at Graph Tools: Triangles, Vectors, 2D/3D | CalcBE
  Lutasin ang mga tatsulok, magtrabaho kasama ang mga vector, at gumamit ng mga graph helper tulad ng graph paper at number lines. Browser-only geometry tool.
• GPA ↔ Percentagem (educativo)
  Converta entre GPA e percentagem com fórmulas de exemplo (p.ex., % = 9,5 × GPA ou % = 10 × GPA). As instituições diferem — confirme a regra aplicável.

I

• Inequality Solver (1 & 2 Variable) — Steps & Graphs
  Solve linear, compound, absolute value, quadratic, and rational inequalities with shareable steps, plus half-plane and system visuals that shade the feasible region.
• Integration Calculator (numeric + steps)
  Compute definite integrals with trapezoid, Simpson, adaptive Simpson, Romberg, Gauss-Legendre, and Monte Carlo while logging nodes, weights, and error estimates. Includes basic indefinite forms, applications, and prob…
• Invoice: Net ↔ Gross (VAT isinama/inalis)
  Magpalit ng net at gross sa invoice sa pamamagitan ng VAT rate (hal. 12%). Piliin ang rounding at currency. Shareable URL.
• IVA 13% — líquido ↔ bruto
  Converta rapidamente entre preço líquido e bruto a 13% de IVA. Arredondamento e partilha por link.
• IVA 23% — líquido ↔ bruto
  Converta rapidamente entre preço líquido e bruto a 23% de IVA. Arredondamento: ao mais próximo / para cima / para baixo. Partilha por link.
• IVA 6% — líquido ↔ bruto
  Converta rapidamente entre preço líquido e bruto a 6% de IVA. Arredondamento e partilha por link.
• IVA em Portugal — atalhos por alíquota (23% / 13% / 6%)
  Acesse rapidamente calculadoras de IVA por alíquota (23% / 13% / 6%) ou use a calculadora geral de IVA. Página útil para quem lida com preços em Portugal.

K

• Kalkulador ng limiting reagent — theoretical yield, % yield at purity | CalcBE
  I-balanse ang reaksyon (auto o manual), i-convert ang g/mol/M×L na may purity, at makita ang limiting reagent, theoretical yield, % yield at purity nang step-by-step. May CSV at shareable URL.
• Kalkulador ng Prime Factorization | Miller–Rabin at Pollard Rho
  I-factor ang integer nang mabilis gamit ang Miller–Rabin at Pollard Rho. Tingnan ang canonical form, mga hakbang, at mga function tulad ng τ(n), σ(n), φ(n), μ(n), rad(n).
• Kalkuladora ng prime factorization hanggang 2^53−1 | CalcBE
  Ilagay ang isang positibong integer para hatiin ito sa prime factors at makita ang mga exponent, bilang ng divisors at kung prime o composite ang bilang. Kopyahin ang link ng resulta para sa homework o mabilis na pag‑…
• Kinematics: SUVAT / Projectile / Free Fall (steps)
  Solve SUVAT unknowns, 2D projectile motion and free-fall on one page. Get step-by-step logs, quadratic root reasoning, shareable URLs, plots, and teacher notes.

L

• Lakh/Crore ↔ Western (ตัวช่วยแปลงรูปแบบตัวเลขอินเดีย)
  แปลงตัวเลขระหว่างรูปแบบ Western (1,000,000) และรูปแบบอินเดีย (10,00,000; หน่วย Lakh/Crore) พร้อมแสดงค่าเป็น Lakh/Crore และจัดรูปแบบตามกลุ่มหลักแบบอินเดีย
• Lens & Mirror Equation — with steps and ray diagram
  Compute image distance, magnification, and principal rays for thin lenses or mirrors with a live How it's calculated log, CSV export, and shareable links.
• Limits Explorer — One-sided limits & numeric L'Hôpital
  Diagnose indeterminate forms, apply numeric L'Hôpital, sample one-sided limits, and visualise the graph near the approach point. Shareable URL, LaTeX copy, and CSV export included.
• Linear Regression & Correlation — Scatter, OLS/WLS, R² (with steps)
  Paste x,y[,w] or upload a CSV to fit OLS, WLS, or Theil–Sen. Visualize the regression line with 95% confidence/prediction bands, residuals, t/F tests, CSV export, LaTeX, and a transparent step log on one page.
• Linear Systems Solver with RREF Steps (2×2 & 3×3)
  Reduce 2×2 and 3×3 linear systems with Gaussian or Gauss-Jordan elimination, log every row operation, keep exact fractional answers, and share matrices in one click.
• Log Laws Transformer (with steps) — expand, condense, change of base
  Expand, condense, and evaluate logarithms with shareable steps. Convert between bases (log10 and ln), copy LaTeX, and guide lessons with teacher mode.
• Long Division & Multiplication Calculator (Step-by-Step)
  Walk through long division and long multiplication with decimals, repeating detection, and highlighted teaching steps. Share links or copy LaTeX instantly.

M

• Matrix Calculator — RREF / Solve Ax=b / Inverse / Determinant (with steps)
  Compute RREF, solve Ax=b, find the inverse, determinant, rank, null space, row and column spaces with detailed elimination logs. Supports exact fractions, decimals, shareable URLs, and LaTeX export.
• Mean and Standard Deviation Calculator (Population vs Sample)
  Paste or type your dataset to compute count, mean, variance, and standard deviation (population N and sample N‑1), then copy a shareable result link.
• Mga Calculator ng Buwis: VAT, GST, Income Tax, Net ↔ Gross | CalcBE
  Mabilis na mga calculator ng buwis para sa VAT/GST, net↔gross conversion, at income tax. Browser-only, walang sign-up.
• Mga Calculator ng Loan at Mortgage: Pagbabayad, Iskedyul, Abot-kaya | CalcBE
  Tantyahin ang mga pagbabayad, ihambing ang mga iskedyul ng amortization, at suriin ang affordability (DTI) gamit ang browser-only loan at mortgage calculators.
• Mga Calculator ng Petsa at Oras: Mga Araw sa Pagitan, Mga Araw ng Negosyo, Mga Time Zone | CalcBE
  Kalkulahin ang mga araw sa pagitan ng mga petsa, magdagdag/magbawas ng oras, magbilang ng mga araw ng negosyo, at mag-convert ng mga time zone. Browser-lamang.
• Mga istatistika ng dice – mga logro ng tagumpay at calculator ng pamamahagi | CalcBE
  Kalkulahin ang mga probabilidad ng tagumpay, eksakto o simulate na mga pamamahagi, mean/SD, at mga nangungunang mode para sa NdS +/- K dice notation. Ang mga awtomatikong switch ay Eksaktong/Sim, nagpapakita ng mga hi…
• Mga Paksa at Koleksyon | CalcBE.com
  Mag-browse ng CalcBE mga koleksyon ng paksa upang mabilis na mahanap ang tamang calculator o tool (random draws, PDF, loan, buwis, at higit pa).
• Mga Tool sa Pag-aaral at Silid-aralan: Worksheet, Graph Paper, GPA | CalcBE
  Mga tool na handa sa silid-aralan: generator ng worksheet, graph paper, quick chart, at mga calculator ng GPA at istatistika. Browser-lamang.
• Modular Arithmetic Suite — Extended GCD / Inverse / Fast Power / CRT (step-by-step)
  Compute extended GCD, modular inverses, fast power, CRT and linear congruences with BigInt precision. Every iteration appears in How it’s calculated, plus CSV export and shareable URLs for teaching.

N

• Normal Distribution Calculator — PDF/CDF/Quantile & Z-Score
  Enter a mean and standard deviation to compute PDF, CDF (one- and two-tailed), quantiles, interval probabilities, and z-scores with step-by-step explanations, a shaded normal curve, shareable URLs, and teacher notes.
• Numerieke notatie：Nederlandse ↔ Westerse（1.234,56 ↔ 1,234.56）
  Zet getallen om tussen Nederlandse notatie（1.234,56）en Westerse（1,234.56）。Deel een link met de huidige waarde.

P

• Partial Fractions Calculator with Steps
  Decompose rational functions into partial fractions with polynomial long division, Durand-Kerner factorisation, Gaussian elimination, LaTeX, CSV, and shareable URLs.
• Partial pressure & gas mixing (with steps) — Dalton's law, two-tank mixing, wet gas, van der Waals
  Run Dalton’s law, two-tank isothermal mixing, and wet gas corrections with step-by-step logs. Compare van der Waals pressure, export CSV results, and share every setup by URL.
• Pascal's Triangle & Binomial Expansion (with steps)
  Generate Pascal rows, combinations, and binomial expansions with BigInt accuracy. Watch How it's calculated, export CSV logs, inspect row identities, and share lesson-ready URLs.
• Percentage Calculator（X% ng Y／Taas-Baba／Ilan%） | CalcBE
  Kuwentahin ang X% ng Y, kung ilang porsiyento ang X sa Y, at pagtaas/pagbaba sa porsiyento. May shareable URL at mabilis na resulta.
• Permutation & Combination Calculator (nPr, nCr) — with Steps
  Compute permutations nPr, combinations nCr, and factorial n! with exact BigInt results, scientific-notation approximations, step logs, teacher notes, and shareable URLs.
• Prime Factorization with Steps & Factor Tree | τ(n), σ(n), φ(n)
  Factor any integer into primes, see every trial division step, compute τ(n), σ(n), φ(n), and draw the factor tree. Optional second integer shows gcd/lcm via exponents.
• Probability Simulator — coin, dice, roulette (theory vs empirical, with steps)
  Deterministic coin, dice, and roulette simulations compare theory vs empirical results, surface Wilson 95% confidence intervals, convergence charts, CSV/LaTeX exports, and full How it's calculated steps.

Q

• Quadratic & Polynomial Solver with Steps
  Show exact and decimal roots, discriminant classification, factorization, completing the square, and a parabola plot. Polynomial mode (≤3) walks through rational root candidates and synthetic division.
• Quadratic Equation Solver (Discriminant & Vertex)
  If a = 0 the expression is linear. The solver automatically switches to bx + c = 0 and reports the appropriate result.

R

• Radical Simplifier & Rationalizer (with steps) — √, nth roots, conjugates
  Learn to simplify radicals, rationalize denominators (monomial or a+b√m), combine like radicals, and convert A^(p/q) ↔ √[q]{A^p} with transparent step-by-step logs.
• Random at Mga Lottery: Pickers, Dice, Probability | CalcBE
  Mabilis na mahanap ang tamang random na tool: weighted random picker, random picker, dice tool, at probability calculators. Browser-only, walang sign-in.
• Ratio, Proportion & Percentage Solver (Step-by-Step)
  Simplify ratios, solve proportions, split totals, compare percentages and convert map scales with transparent step-by-step working, teacher mode, shareable links, and LaTeX output.
• RC / RL / RLC Calculator — time constant, cutoff, resonance & phase (with steps)
  Analyse RC, RL, and RLC networks with step-by-step formulas. Compute time constants, divider gain, resonance, and equivalent series or parallel values with shareable results.
• Riemann Sums Calculator | Left/Right/Trapezoid/Simpson
  Visualise left/right, midpoint, trapezoid and Simpson sums for f(x), compare with an adaptive Simpson reference, and export CSV or share a link.

S

• Sampling & Bootstrap — CLT Explorer (with steps)
  Simulate uniform, normal, exponential, and Bernoulli samples with a seeded LCG, compute mean/median/proportion estimates, bootstrap percentile and t/normal CIs, and visualise CLT histograms with How it's calculated st…
• Scientific calculator (trig, logs, angle modes)
  Mag-compute ng trig, log, exponent at factorial sa Deg/Rad na mga mode, gamit ang keyboard input at maibabahaging URL na nagse-save ng iyong expression at settings.
• Sequences & Series (Arithmetic / Geometric) — terms & sums with steps
  Compute arithmetic and geometric sequences with step-by-step logs: nth terms, partial sums, solving for n or k, two-point inference, and table generation with shareable outputs.
• Simple harmonic motion (SHM) na simulator — may mga hakbang at enerhiya | CalcBE
  I-simulate ang mass-spring SHM gamit ang analytic, Euler-Cromer, o RK4; tingnan ang omega, period, enerhiya, mga log, grap, at CSV na puwedeng ibahagi.
• Solver ng linear system (2×2 / 3×3)
  Lutasin ang 2×2 at 3×3 na linear na equation gamit ang Gaussian elimination (RREF), iklasipika ang mga solusyon, ipakita ang parametric na porma, residual, mga hakbang ng elimination, at opsyonal na tuntunin ni Cramer…
• Standard Calculator (History & Memory)
  Perform four‑function math with parentheses and percent, a running tape, and memory slots—fully keyboard accessible, with a shareable result link.

T

• Taxa de esforço (DTI)
  Introduza o rendimento mensal bruto e as despesas mensais de dívida para calcular a taxa de esforço (DTI). Resultado educativo; não é aconselhamento financeiro.
• Taylor & Maclaurin Series — with steps and graphs
  Generate Taylor/Maclaurin P_n(x) with symbolic derivatives, fall back to least-squares fits when needed, and compare f and P_n on the same canvas. Includes error summaries, step-by-step logs, LaTeX, CSV, and shareable…
• Triangle Solver - Batas ng mga kasalanan/cosines (SSA hindi maliwanag) | Calcbe
  Malutas ang mga tatsulok na may SSS, SAS, ASA/AAS, at ang hindi maliwanag na kaso ng SSA. Tingnan ang mga sunud-sunod na mga formula, switch degree/radian output, pumili ng mga lugar ng desimal, at tingnan ang isang a…
• Triangle Solver (SSS / SAS / ASA, Area & Circumradius)
  Select the known combination (three sides, two sides plus the included angle, or two angles plus the included side) and this tool will compute the remaining.
• TRPG dice check – d20 advantage/disvantage at mga tagumpay sa dice pool | CalcBE
  Patakbuhin ang mabilis na d20 na mga pagsusuri nang may kalamangan o kawalan, ihambing sa isang DC, at gumulong ng mga dice pool upang direktang mabilang ang mga tagumpay sa iyong browser. Panatilihing lokal ang mga r…
• Truth Table & Logic Evaluator — DNF/CNF Simplifier
  Build Boolean truth tables up to 10 variables, export canonical DNF/CNF, simplify with Karnaugh or Quine–McCluskey, and share CSV or URL with How it’s calculated steps.

U

• Unit Circle & Trig Explorer — amplitude, period & phase
  Explore y = A*f(bx+φ)+D for sine, cosine, and tangent. Sync the unit circle and graph, inspect amplitude, period, phase shift, export CSV samples, copy LaTeX, and share the exact state.

V

• Vector Calculator — dot/cross, projection, angle, area, triple (with steps)
  Compute norms, dot, cross (2D/3D), projection, angle, areas, and triple product with step-by-step logs. 2D diagram, shareable URL, LaTeX and CSV export.

W

• Withholding Tax Estimator (TRAIN) — Edukasyonal
  Tantyahin ang buwanang withholding mula sa buwanang nabubuwisang kita gamit ang TRAIN annual schedule (example). Edukasyonal lamang; maaaring mag-iba ang aktuwal na payroll.

#

• الحد الأدنى للسداد (بطاقة ائتمان)
  احسب عدد الأشهر وإجمالي الفائدة عند سداد الحد الأدنى لبطاقة الائتمان بناءً على الرصيد الحالي والنسبة السنوية والحد الأدنى (نسبة/مبلغ ثابت).
• تبدیل تومان ↔ ریال (ساده)
  تومان و ریال را با نسبت ثابت ۱ تومان = ۱۰ ریال تبدیل کنید. لینک نتیجه قابل اشتراک.
• บัตรเครดิต: จ่ายขั้นต่ำ (ประมาณการ เดือนและดอกเบี้ย)
  ป้อนยอดคงค้าง อัตราดอกเบี้ยต่อปี (APR) อัตราจ่ายขั้นต่ำ (%) และยอดขั้นต่ำ (บาท) เพื่อประมาณจำนวนเดือนและดอกเบี้ยรวม (เพื่อการศึกษา)
• แปลงพื้นที่ ที่ดิน: ไร่/งาน/ตารางวา ↔ m²
  แปลงพื้นที่ระหว่างไร่‑งาน‑ตารางวา และตารางเมตร: 1 ไร่ = 1600 m², 1 งาน = 400 m², 1 ตร.วา = 4 m² พร้อมลิงก์ผลลัพธ์ที่แชร์ได้