Calculators
Free Online Calculators
Simple and accurate calculators for everyday tasks — taxes, discounts, mortgages, salaries and more. Everything runs in your browser, no sign-up required.
Percentage Calculator
Calculate percentages instantly — find what X% of a number is, or what percentage one number is of another.
Calculate percentage →🧾VAT Calculator
Add or remove VAT from any amount. Supports custom tax rates for any country.
Calculate VAT →🏷️Discount Calculator
Find the final price after a percentage discount. See exactly how much you save.
Calculate discount →🍽️Tip Calculator
Calculate the tip and total bill for any restaurant or service. Split between multiple people.
Calculate tip →🏠Mortgage Calculator
Estimate your monthly mortgage payment based on loan amount, interest rate and term.
Calculate mortgage →💶Net Salary Calculator
Convert your gross salary to net by adjusting income tax, social security and other deductions.
Calculate net salary →📈Compound Interest Calculator
See how your savings or investments grow over time with compound interest.
Calculate compound interest →⚖️BMI Calculator
Calculate your Body Mass Index from your height and weight. Instantly see which category you fall into.
Calculate BMI →Why use these calculators?
100% private
No data is ever sent to any server. All calculations happen locally in your browser.
No sign-up required
Open any calculator and use it immediately. No account, no email, no limits.
Works on any device
All calculators run in any modern browser on desktop, tablet or mobile — no app to install.
Completely free
Every calculator on this page is free to use with no hidden costs and no ads.
Frequently asked questions
- Are these calculators free? ▾
- Yes, completely free. No sign-up, no subscription and no hidden costs.
- Do the calculators work offline? ▾
- Yes. Once the page is loaded, all calculations happen in your browser without any internet connection.
- Can I use these on mobile? ▾
- Yes. All calculators work in any modern mobile browser — no app needed.
- Is any data sent to a server? ▾
- No. All calculations are done locally. Nothing is ever sent to our servers.
- How accurate are the results? ▾
- Results are calculated with standard mathematical formulas and are accurate for everyday use. For financial or legal decisions, always consult a professional.