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Basic Calculators

Everyday arithmetic and quick calculations

% of, % change, difference

Fraction Calculator

Add, subtract, multiply fractions

Split bills with tip

Discount Calculator

Sale price and savings

Pre/post tax amounts

Average Calculator

Mean, median, mode

Square / Nth Root

Roots and radicals

Exponent Calculator

Base raised to a power

Modulo Calculator

Remainder after division

Ratio Simplifier

Simplify and compare ratios

Rounding Calculator

Round to any decimal place

Proportion Solver

Solve a/b = c/d

Step-by-step division

Distance from zero

Factor Calculator

All factor pairs of a number

Least common multiple & GCD