Aspect Ratio Calculator

Ratio Calculator

Solve proportions, simplify ratios, and scale dimensions. Find missing values in A:B = C:D.

Percentage Calculator

Calculate percentages, percentage change, and find what percent one number is of another.

BMI Calculator

Calculate your Body Mass Index (BMI) with metric and imperial units.

Tip Calculator

Calculate tips and split bills between multiple people easily.

Loan & Mortgage Calculator

Calculate monthly payments, total interest, and see a full amortization schedule for any loan.

Age Calculator

Calculate your exact age in years, months, days, hours, and minutes from your date of birth.