Free calculators
for everyday decisions
FiksuLaskuri offers 224 free online calculators for money, health, home projects, time, cars and math. Fast, private and easy to use, with no sign-up required.
Why FiksuLaskuri?
We built it to make everyday math quick and clear for everyone.
Fast results
Answers appear instantly. Everything is calculated right in your browser, with no waiting for a server.
Private by design
The numbers you enter stay on your device. We do not store your calculator inputs.
Works everywhere
Phone, tablet or desktop: every calculator is built to work on any screen.
Clear explanations
Each calculator explains the formula, shows a worked example and answers common questions.
Completely free
No accounts, no paywalls and no hidden fees. The site is supported by advertising.
Always growing
We keep adding calculators and improving the ones we have. Tell us what you would like to see.
What calculators can you find?
Pick a category to start.
Money & Finance 40
Loan, savings and investment calculators
❤️Health 43
BMI, calories and health calculators
📅Time & Dates 19
Date, age and time calculators
🏠Home & Construction 40
Building and energy calculators
🚗Cars & Travel 16
Fuel and travel cost calculators
🔢General Calculators 27
Percentage, unit and everyday calculators
🧮Math 39
Geometry, calculators and conversions
About FiksuLaskuri
FiksuLaskuri is a collection of free online calculators for the questions people actually ask: how much is that loan really going to cost, what does a recipe or a remodeling project need, how long will a trip take, what is my body mass index. Each calculator is a simple page with a clear form, an instant result and a plain-language explanation underneath.
Money, health, home and more
Our money calculators cover loans, savings, investing, compound interest and business math. The health calculators use widely accepted formulas such as BMI, BMR and heart-rate zones. Home and building calculators help estimate paint, flooring, concrete, roofing and energy needs before you shop. There are also time and date tools, travel and car cost calculators, unit converters and a full set of math calculators.
Estimates, not advice
Our calculators give estimates based on the numbers you enter and standard formulas. They are not financial, tax, legal or medical advice, so please double-check anything important with a qualified professional. Some calculators show amounts in euros (€) or use metric units by default. The math is the same for any currency or unit when you enter your own numbers.
Where we are from
FiksuLaskuri started in Finland as a Finnish-language calculator site, and this English edition brings over the calculators that work for everyone, wherever you live. Have an idea or found a mistake? Get in touch, we read every message. See also our Privacy Policy and Terms of Use.
Try a calculator now
224 free calculators are waiting. No sign-up, no fees.