About Nopealaskuri.fi
Updated: 22 May 2026
⚠️ Disclaimer
Nopealaskuri.fi provides calculators for informational purposes only. The results given by the calculators may be incorrect, outdated, or inaccurate depending on your situation. We are not responsible for the consequences of decisions made based on the information provided by the calculators.
Always verify important calculations — such as taxes, loans, pensions, or health-related estimates — with an appropriate professional or authoritative source (Finnish Tax Administration, Kela, FIN-FSA, etc.).
What is Nopealaskuri.fi?
Nopealaskuri.fi is a Finnish web service that provides free calculators for everyday needs. The calculators cover salary and tax calculations, loans, health, sports, savings and budgeting, among other things.
The service is completely free and requires no registration. All calculations run in your browser — your data never leaves your device.
Accuracy of the calculators
- Tax and salary calculators are based on publicly available tax tables and percentages. Actual taxes depend on individual factors such as the withholding percentage on your tax card.
- Loan calculators produce approximate values. The actual loan offer depends on the bank, credit rating and other factors.
- Health and fitness calculators (BMI, calories, heart rate) are indicative only. Consult a doctor before making significant changes to your diet or exercise routine.
- Currency converter uses approximate rates — not real-time. Check up-to-date rates from your bank or the ECB.
- Blood alcohol calculator is indicative only. Never drive under the influence of alcohol.
Sources and methodology
The calculators are based on the following sources:
- Public tax tables and instructions from the Finnish Tax Administration
- Kela benefit tables (unemployment allowance, student grant, parental benefit)
- Finnish Annual Holidays Act (162/2005)
- WHS Golf Handicap System (R&A / USGA)
- Harris-Benedict BMR formula (calorie needs)
- Widmark formula (blood alcohol calculator)
- Kelly criterion (betting calculator)
Technical information
The site is built with the Next.js framework and hosted on Vercel. Calculation runs entirely in the user's browser — we do not use server-side computation. The site is available in Finnish, English and Swedish.
Contact
Spotted an error in a calculator or want to suggest a new one? Contact: info@nopealaskuri.fi