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New & featured
- Multiplication Table Generator | Printable Times Tables | CalcBE Generate printable multiplication tables for 1-12, 1-20, custom sizes, blank practice sheets, skip counting, and answer keys with a reproducible seed.
- Number Bonds & Fact Family Builder | Printable Practice | CalcBE Build number bonds to 10, 20, 100, or any target, then print missing-part worksheets, answer keys, and fact families with part-whole diagrams.
- Likert Scale Calculator | Survey Summary, Top-2-Box, NPS | CalcBE Paste per-option survey counts and get n, mean, median, mode, standard deviation, Top-2-Box, Bottom-2-Box, NPS split, and distribution bars.
- Cp Cpk Calculator - Process Capability, Pp Ppk, DPMO & Sigma Level | CalcBE Paste measurements or enter mean and SD with LSL/USL to calculate Cp, Cpk, Pp, Ppk, estimated PPM/DPMO and sigma level with a specification histogram.
- Days Until Calculator | Count Days Until Any Date | CalcBE Count how many days until any date or event. See days, weeks, weekend days and business days left until birthdays, Christmas, New Year, exams and more...
- Age Difference Calculator | Age Gap Between Two Dates | CalcBE Enter two birth dates to calculate the exact age difference in years, months, weeks and days. See who is older and when the younger person reaches the...
- Molar Mass Calculator | Molecular Weight & Composition | CalcBE Calculate molar mass from a chemical formula with element counts, mass percent composition, and grams-to-moles conversion.
- Repeating Decimal to Fraction Calculator with Steps | CalcBE Convert repeating (recurring) decimals like 0.1666... or 0.(142857) into exact reduced fractions with 10^k algebra steps, GCD simplification, and a...
- A/B Test Significance Calculator | CalcBE Check A/B test results with conversion rates, lift, z-test p-value, confidence interval, and Bayesian win probability.
- P-value & Critical Value Calculator | CalcBE Look up p-values from z, t, chi-square, or F statistics, or find critical values from alpha and degrees of freedom with a shaded tail diagram.
Trending now
- Weighted Random Picker & Randomizer | Seeded Weighted Draws | CalcBE
Use this weighted random picker and randomizer to draw winners by weight, ratio, or raffle entries.
- Long Division Calculator with Steps | Show Work & Remainders | CalcBE
Enter a dividend and divisor to get long division steps, quotient, remainder, decimal answer, and subtraction work.
- Business Days & Countdown Calculator | Skip Weekends | CalcBE
Count calendar or business days between two dates, exclude custom weekend patterns and holiday lists, and jump.
- Date Difference Calculator (days, business days, Y/M/D) | CalcBE
Compute days between dates, count business days and working hours, and see a year‑month‑day breakdown.
- Online Alarm Clock | Browser Alarm with Snooze | CalcBE
Set alarms in your browser without installing apps. Supports repeats, snooze, sound, notifications, and fullscreen.
- Loan & Mortgage Calculators: Payment, Schedule | CalcBE
Estimate payments, compare amortization schedules, and check affordability (DTI) with browser-only loan & mortgage calculators.