Education & study tools

C

• CGPA ↔ Percentage Converter (Educational)
  Convert between CGPA and percentage using example mappings (9.5×CGPA or 10×CGPA). Institutions differ—always confirm your institution’s rule.

D

• Deviation Score (T-score) & Percentile Calculator | CalcBE
  Calculate z-score, deviation score (T-score / hensachi), and percentile. Supports input from mean & standard deviation, or from a score list / frequency table.

E

• Embed Builder — share links & iframe code | CalcBE
  Create CalcBE share links and responsive iframe embeds. Supports presets, UTM tags, base64url cfg, optional hash mode, and an auto-height snippet.

F

• Fraction Simplifier & Mixed Number Converter (Steps & Visuals) | CalcBE
  Reduce any fraction, convert between improper and mixed numbers, and review Euclidean GCD steps with pie and number line visuals for lessons.

G

• GPA Calculator — cumulative & final grade needed | CalcBE
  Calculate term and cumulative GPA (weighted or unweighted), convert letter↔percent, estimate the minimum final exam score to reach your target, and copy a shareable URL.
• GPA Calculator (Weighted & Unweighted Course Average) | CalcBE
  Compute weighted and unweighted GPA with editable scales, Honors/AP bumps, and shareable course tables. Includes how the math works and FAQs.

K

• Kinematics: SUVAT / Projectile / Free Fall (steps) | CalcBE
  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

• Limiting reagent calculator (with steps) | CalcBE
  Auto-balance reactions, convert grams ↔ moles (purity optional), and get limiting reagent, theoretical yield, and percent yield — step by step.

M

• Matrix Calculator — RREF / Solve Ax=b / Inverse / Determinant (with steps) | CalcBE
  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.

N

• Number line & interval visualizer (inequality shading)
  Shade inequalities and interval unions on an interactive SVG number line. Visualize algebra steps, export SVG/PNG, and copy share-ready URLs for lessons.

Q

• Quick charts from pasted data — scatter / box plot + regression (with steps, PNG/PDF)
  Paste spreadsheet data to generate scatter and box plots instantly. Includes OLS, Theil–Sen, and polynomial regression with step-by-step math plus PNG/PDF export.

W

• Worksheet & Quiz Auto-Generator (steps & PDF)
  Worksheet & quiz auto-generator with steps (PDF) - linear, quadratic, factoring, fractions, ratios. Deterministic seed for reproducible class handouts.