Calculators

💰Loan Calculator

Calculate monthly payments, total interest, and a full amortization schedule.

％Percentage

What is X% of Y, X is what percent of Y, and percent change — solved instantly.

🧾Tip Calculator

Work out the tip, total, and per-person split for any bill.

⚖️BMI Calculator

Calculate your body mass index in metric or imperial units.

🎂Age Calculator

Exact age in years, months, and days — plus a countdown to the next birthday.

📅Date Calculator

Days between two dates, or add and subtract days from any date.

📏Unit Converter

Convert length, weight, temperature, volume, area, and speed instantly.

📈Compound Interest

See how savings grow with compound interest and regular contributions.

🌍Time Zones

Convert a time across multiple time zones at once — DST handled automatically.

🎓GPA Calculator

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

🏷️Discount

Sale price after percent off — including stacked discounts and tax.