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Free money & finance calculators

Compare a fixed-rate loan payment, illustrate compound growth or split a bill fairly. Financial estimates depend on their assumptions: taxes, fees, changing rates and extra deposits may be excluded. Keep your assumptions alongside the result and check actual terms with the provider before making a commitment.

Loan & mortgage

Estimate monthly payments and total interest.

Open Loan & mortgage →

Compound interest

See how a starting amount could grow over time.

Open Compound interest →

Choose another category

Compare like-for-like assumptions

A loan estimate needs principal, annual interest and a term. Compound growth assumes a constant rate and the chosen compounding interval. Keep the assumptions visible when comparing scenarios; a lower payment over a longer term can still mean more total interest.

Check the final payment units

A bill split must add back to the total after rounding. Some participants may need to pay one smallest currency unit more than others. Choose the correct decimal precision and review the allocated shares. These utilities calculate numbers; they do not move money or verify offers.

Category questions

How do I choose from these tools?

A loan estimate needs principal, annual interest and a term. Compound growth assumes a constant rate and the chosen compounding interval. Keep the assumptions visible when comparing scenarios; a lower payment over a longer term can still mean more total interest.

What should I check before using the result?

A bill split must add back to the total after rounding. Some participants may need to pay one smallest currency unit more than others. Choose the correct decimal precision and review the allocated shares. These utilities calculate numbers; they do not move money or verify offers.

Do these tools require an account?

No. The listed utilities are free to use with no tool signup. Read the individual page for input limits and processing details.