7 free tools

Money

Estimate loans, interest, earnings, tips, and payment fees with clear assumptions.

Choose a tool

Each result has a clear method, privacy statement, and stable URL.

Calculate a tip, total bill, and per-person split with flexible rounding.

Estimate principal, interest, taxes, insurance, PMI, HOA, and mortgage payoff.

Project compound growth with recurring contributions and flexible compounding periods.

Estimate loan payments, interest, total cost, payoff date, and amortization.

Convert salary and pay rates across hourly, weekly, biweekly, monthly, and annual periods.

Estimate Stripe payment fees, net proceeds, or the charge needed to receive a target amount.

Estimate PayPal transaction fees, net proceeds, and reverse-calculated charge amounts.