Free · no sign-up · everything computed in your browser

Set a course
for your money.

The Financial Ship is building one hundred rigorously tested financial calculators — free, private and in your language. The first one is live today.

Why it's different

1Calculator live today

0On the roadmap

0Languages by 2028

Built to be checked, not taken on trust

Most financial calculators are ad farms with a formula attached. Ours are instruments: every number can be traced, tested and verified by hand.

Every calculator shows its formula, the variables and your own numbers plugged in, so you can verify it by hand.

Each tool ships with test cases from independent spreadsheets and reference calculators, with a tolerance of 0.01.

A second implementation in another language runs on every change and has to agree to the cent before anything is published.

Your salary, savings or debts never leave your device. There are no accounts and no cookies needed to calculate.

Copy a link that restores your scenario, export CSV or PDF, or embed any calculator on your own site.

A 15-minute human review with a checklist, a public changelog and a visible version and review date on every tool.

Every rate, index and tax bracket links to the official publication it came from, with the date it was last checked.

You see an answer before you type anything. Then make it yours.

01
Set your numbers
Type or slide: starting amount, regular contribution, rate and years. Add inflation to see what the money will really buy.
02
Watch it update
The chart and the year-by-year table follow every change, with the formula and your own values in view.
03
Take it with you
Copy a link that restores your exact scenario, export CSV or PDF, or embed the calculator on your own site.

A new tool ships every week across nine categories — each with reference tests, cited sources and a human review before it goes live.

English is live today as the reference version. The first twelve translations land in 2027 — every one reviewed by a person before it ships.