Calculators

Quick, accurate calculators for money, dates and everyday math — with clear breakdowns of every result.

What is X% of Y, percent change, increase and decrease — all in one.

Monthly payment, total cost and total interest for any loan.

Full monthly payment — principal, interest, taxes and insurance.

See savings or investments grow with monthly contributions over time.

Convert annual salary to hourly pay and back — weekly, biweekly, monthly too.

Tip, total and per-person split — one tap per option.

Body mass index from height and weight, with the healthy range for you.

Sale price from any discount — including stacked coupons and tax.

Add tax to a price — or back out the tax hidden in a total.

Semester GPA on the 4.0 scale from your grades and credit hours.

Exact age in years, months and days — plus days until the next birthday.

Days between two dates, or add/subtract days, weeks, months, years.