Free Financial Calculators — Instant & Private

Mortgage, loan, and percentage calculators that run entirely in your browser. No sign-up, no waiting, no data collection — just answers.

🔒 All calculations happen in your browser. No data is ever sent to a server.

Monthly payment, total interest, amortization schedule and compare mode. Includes LTV ratio.

Use Free →

Personal, auto and student loans. Includes origination fee support and effective APR calculation.

Use Free →

Four calculators in one: find a percentage, percentage change, reverse percentage and more. Live results.

Use Free →