Math Calculators — Zapit

Math Calculators

Percentage, date difference, age, scientific and more.

From percentages and fractions to matrices and logarithms — fast, accurate calculators for students, engineers, and everyday math needs.

Age Calculator

Calculate exact age in years, months and days from a birthdate.

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Amortization Calculator

Generate a full loan amortization schedule with every payment.

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Date Difference Calculator

Find the exact number of days, weeks or months between two dates.

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GPA Calculator

Calculate your grade point average from course grades and credits.

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Inflation Calculator

Adjust an amount for inflation and find its real purchasing power.

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Percentage Calculator

Calculate percentages, percentage change and percentage of totals.

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Quadratic Equation Solver

Solve quadratic equations and visualize roots on a graph.

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Scientific Calculator

Full-featured scientific calculator with trig, log and more.

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Statistics Calculator

Calculate mean, median, mode, standard deviation, variance, quartiles and more from any dataset.

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Fraction Calculator

Add, subtract, multiply and divide fractions with step-by-step solutions and simplification.

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LCM & GCD Calculator

Find the Least Common Multiple and Greatest Common Divisor of multiple numbers with prime factorization.

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Ratio Calculator

Simplify ratios, solve proportions and scale ratios with step-by-step working.

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Matrix Calculator

Perform matrix addition, subtraction, multiplication, determinant, inverse and transpose operations.

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Triangle Solver

Solve any triangle from SSS, SAS, ASA, AAS or SSA using the law of sines and cosines.

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Pythagorean Theorem Calculator

Calculate missing sides of a right triangle and check for Pythagorean triples.

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Combinations & Permutations

Calculate nCr combinations and nPr permutations with step-by-step factorial breakdowns.

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Number Base Converter

Convert numbers between binary, octal, decimal, hexadecimal and any custom base (2–36).

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Logarithm Calculator

Calculate log base b, log10, natural log (ln) and log2 with change-of-base formula and antilog.

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Number to Words Converter

Convert numbers to English words and back. Supports up to quadrillions, negative numbers, and currency mode.

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