Finance Tools
7 free finance tools, all running privately in your browser.
These free finance calculators help you work out loan payments, mortgage costs, compound interest, ROI, VAT, and discounts in seconds. Each one shows the underlying math so you understand the result, not just the number, and everything runs privately in your browser with no signup.
Financial decisions hinge on small differences - half a percent on a mortgage, a few years on a loan term, or the gap between simple and compound interest - that are hard to feel intuitively. These calculators make those differences concrete so you can compare scenarios side by side before committing. For the reasoning behind the formulas, see our guides on compound interest and mortgage amortization.
Loan Calculator
Calculate monthly payments and total interest on a loan.
Compound Interest Calculator
See how your savings grow with compound interest.
Tip Calculator
Calculate tips and split the bill between people.
Mortgage Calculator
Estimate your monthly mortgage payment.
Discount Calculator
Calculate sale prices and savings.
VAT Calculator
Add or remove VAT from any amount.
ROI Calculator
Calculate return on investment as a percentage.
Frequently asked questions
Are these financial calculators accurate?
They use the same standard formulas banks and lenders use (amortization, compound interest, and so on). They're excellent for planning and comparison, though your actual loan or investment terms are set by your provider.
Is this financial advice?
No. These are calculation tools, not personalized financial advice. For decisions about your specific situation, consult a licensed financial professional.