Free Online Calculators
199+ free calculators for finance, health, math and everyday use. Get instant results with no account or downloads.
Most Popular Calculators
The calculators people use most. Click any to open it right away.
BMI Calculator
Check your Body Mass Index in seconds
Mortgage Calculator
Find your monthly payment and total loan cost
Compound Interest
See exactly how your money grows over time
Loan Calculator
Work out EMI for any loan before you sign
Calorie Calculator
Get your daily calorie target based on your goals
Percentage Calculator
Fast, accurate percentage and ratio calculations
Age Calculator
Know your exact age in years, months and days
Scientific Calculator
Full scientific functions for advanced math
Browse by Category
Pick a category and find the right tool for what you need to calculate.
Financial Calculators
- Mortgage Calculator
- Loan Calculator
- Auto Loan Calculator
- Home Equity Loan Calculator
- Interest Calculator
- Payment Calculator
- Retirement Calculator
- Amortization Calculator
- Investment Calculator
- Currency Calculator
- Inflation Calculator
- Finance Calculator
Health & Fitness
- BMI Calculator
- Calorie Calculator
- Body Fat Calculator
- BMR Calculator
- Macro Calculator
- Ideal Weight Calculator
- Pregnancy Calculator
- Pregnancy Weight Gain Calculator
- Pregnancy Conception Calculator
- Due Date Calculator
- Pace Calculator
- Army Body Fat Calculator
Why Use CalcLive?
Fast, accurate, and built for everyone from students to professionals.
Always Free
No subscriptions, no premium plans, no paywalls. Every tool on this site is free to use.
Results in Real Time
Type your numbers and the answer updates instantly. No page reloads, no waiting.
No Account Needed
No email, no sign-up, no personal data collected. Open any calculator and use it right away.
Works on Any Device
Phone, tablet, or desktop, it works the same. No app to download, just open your browser.
Frequently Asked Questions
Common questions about using CalcLive
Are all CalcLive calculators free to use?
Yes. Every calculator on CalcLive is completely free. There are no subscriptions, no hidden fees, and no premium plans. All 199+ tools are free, and that will not change.
Do I need to sign up or create an account?
No. You do not need an account to use any calculator on this site. Open the tool you need, enter your numbers, and get your result. No email, no password, no registration.
What types of calculators does CalcLive offer?
CalcLive has 199+ calculators across four categories. Financial tools cover mortgage, loan, compound interest, ROI, and tax. Health tools include BMI, calorie, body fat, and pregnancy. Math covers scientific, percentage, fractions, and algebra. The Other section has everyday tools like age, date, and unit converters.
How accurate are the calculators?
All calculators are built on standard, verified formulas. Financial calculators use industry-standard amortization and compound interest formulas. Health calculators follow WHO and NIH guidelines. Results match what you would get from professional software.
Can I use CalcLive on my phone or tablet?
Yes. The site works on all screen sizes, including phones, tablets, and desktops. No app download is needed. Open your browser, go to calclive.com, and every tool works the same way.
What is the most popular calculator on CalcLive?
The BMI Calculator and Mortgage Calculator get the most use. The Compound Interest Calculator and Loan Calculator are also widely used by people planning their finances.