Free finance calculators

Financial decisions with numbers, not gut feeling

Whether building wealth, planning retirement or taking on a loan – good financial decisions need numbers you can follow. Our finance calculators make the key relationships visible: how compound interest works over the years, how long your capital lasts in retirement, or what a loan really costs over its full term.

Each calculator is tailored to a specific question and explains, with worked examples, how the result comes about – so you do not just get a number, but can put it in context.

Which calculator fits your question?

For long-term wealth building, the compound interest and ETF savings plan calculators are a good fit. Retirement planning is covered by the withdrawal plan calculator. For safe interest investments you can compare gross and net after tax with the savings and fixed-deposit calculator. The loan calculator shows the payment, interest cost and amortization schedule of an annuity loan.

Many calculators can be combined: for example the savings plan for the accumulation phase and the withdrawal plan for the later payout phase in retirement.

Transparent, free and without sign-up

All finance calculators are free, run directly in your browser and store no inputs. You can share results via a shareable link without any personal data being involved.

Below each calculator you will find a detailed explanation including frequently asked questions. The results are transparent model calculations and do not replace individual investment or tax advice.