Calculator Directory

All calculators available on GreatUtils

Browse every calculator currently available on this website. Each tool runs in the browser for a quick, lightweight experience.

Arithmetic Calculator

Add, subtract, multiply, and divide two values instantly.

Calculate body mass index from your height and weight.

Estimate monthly payment, total interest, and total paid for a loan.

Convert kilometers, miles, meters, feet, and more.

Convert seconds, minutes, hours, days, and weeks.

Compute GPA from course grades and credit hours.

Find percentages, reverse percentages, and percent change.

Estimate tip amount, final total, and per-person split.

Measure age from birth date and time down to seconds.