All Calculators
Browse and use 30+ fully functional calculators, grouped by category. Each tool is browser-based—no downloads, no ads, and 100% free.
BMI Calculator
Calculate your BMI using height and
weight.
BMR Calculator
Estimate daily calories burned at rest.
Body Fat Percentage Calculator
Estimate body fat percentage based on
measurements.
Pregnancy Due Date Calculator
Find your estimated due date from last
menstrual period.
Heart Rate Zone Calculator
Determine your target heart rate zones
for workouts.
Percentage Calculator
Compute percentage values, percentage
increase/decrease.
Age Calculator
Calculate exact age in years, months, and
days from date of birth.
Date Difference Calculator
Find the number of days, months, and
years between two dates.
GPA Calculator
Calculate GPA based on grades and
credit hours..
LCM & HCF Calculator
Find the least common multiple and
highest common factor.
Compound Interest Calculator
Calculate compound growth without
finance context.
Unit Converter
Convert between various units of
measurement.
Speed Calculator
Calculate speed from distance and time.
Acceleration Calculator
Compute acceleration given velocity
change and time.
Force Calculator
Find force using mass and acceleration.
Area Calculator
Calculate area for various shapes.
Volume Calculator
Calculate volume for common 3D shapes.
Carbon Footprint Calculator
Estimate your personal carbon emissions.
Running Pace Calculator
Calculate your pace from distance and
time.
Fuel Cost Calculator
Estimate fuel cost for a trip..
Resistor Color Code Calculator
Decode resistor color bands..
Hex to RGB Converter
Convert hex color codes to RGB values.
Binary to Decimal Converter
Convert binary numbers to decimal
format.
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