Calculators

Reliable calculators for finance, health, dates and percentages.

Calculate your exact age in years, months, weeks and days.

Find the exact difference between two dates.

Percentages, percent change, and percent of a number.

Calculate your Body Mass Index in metric or imperial units.

Estimate your Basal Metabolic Rate — daily calories at rest.

See how your investments grow with compounding over time.

Calculate monthly loan payments, total interest and schedule.

Estimate mortgage payments, interest and amortization.

Calculate sale prices, savings and effective discounts.