Free Calculators

Run percentage-of, reverse-percent, percent-change, increase, and decrease...

Calculate tip, tax, split totals, and rounded bill outcomes.

Calculate stacked discounts, tax, quantity totals, and effective savings rate.

Calculate monthly loan payments using principal, rate, and term.

Calculate gross profit and margin percentage.

Calculate tax amount and total after tax.

Calculate future value with compound growth settings.

Calculate body mass index using metric or imperial measurements.

Estimate GPA from grade and credit inputs.

Calculate arithmetic mean from comma, space, or newline-separated numbers.

Convert decimal values into simplified fraction form.

Convert common fractions and mixed numbers to decimal output.

Calculate percentage difference between two values using average baseline.

Calculate the increased value after applying a percentage rate.

Simplify ratios and generate scaled ratio values.

Evaluate scientific math expressions with trig, powers, and constants.

Calculate population and sample standard deviation from a number list.