Calculate Anything.
From daily math to complex finance, fitness tracking to scientific equations. We have a tool for every task.
Explore CalculatorsBMI Calculator
Calculate Body Mass Index and check your health status.
Due Date Calculator
Calculate estimated delivery date based on last period.
Percentage Calculator
Quickly solve percentage increases, decreases, and parts.
Scientific Calc
Advanced functions for algebra and trigonometry.
Fraction Calculator
Add, subtract, and multiply fractions easily.
Random Number
Generate random numbers for games and statistics.
Age Calculator
Calculate age in years, months, days, and seconds.
Calorie Calculator
Calculate daily calorie needs to reach your weight goals.
BMR Calculator
Calculate Basal Metabolic Rate for better health insights.
Tip Calculator
Split bills and calculate tips for dining out.
Average Calculator
Find the mean, median, and mode of data sets.
Unit Converter
Convert length, weight, volume, and temperature.
ROI Calculator
Calculate Return on Investment and analyze profit efficiency.
Square Footage
Calculate area for flooring, painting, or construction projects.
Height Calculator
Advanced growth tracking using Mid-Parental, Khamis-Roche, and WHO/CDC standards.
Frequently Asked Questions
Are these calculators free to use?
Yes, every tool on CalcHub is completely free. You don't need to register or pay any subscription fees to access our full range of calculators.
Do you save the data I enter?
No, we prioritize your privacy. All calculations are performed locally on your device (client-side), and we do not store or transmit your personal financial or health data to any servers.
How accurate are the financial calculators?
Our financial tools use standard banking formulas to provide estimates. However, actual loan terms, interest rates, or investment returns may vary by institution and country. Please use these figures as a guide rather than a guarantee.
Can I use CalcHub on my mobile phone?
Absolutely! Our website is fully responsive and optimized for all devices, including smartphones, tablets, and desktop computers.
Do I need an internet connection?
While you need an internet connection to load the site initially, many of our calculators will continue to function if you temporarily lose connectivity, as the logic runs directly in your browser.