Calculator Widgets for Your Site
Get FREE calculator widgets that you can add to your website!
There's no sign-up required and adding one of our calculators to your site is dead-simple.
Simply preview the widget, copy the embeddable HTML code, then paste into your website editor. We even include some basic instruction to help you through the process.
Browse some of our most popular widgets below.
Automotive
- Auto Loan Calculator
- Carburetor CFM Calculator
- Electric Vehicle Charging Cost Calculator
- Electric Vehicle Charging Time Calculator
- Electric Vehicle Fuel Savings Calculator
- Engine Compression Ratio Calculator
- Engine Displacement Calculator
- Engine Horsepower Calculator
- Engine Torque Calculator
- Fuel Cost Calculator
- Fuel Flow Rate Conversion Calculator
- Fuel Injector Flow Rate Calculator
- Fuel Savings Calculator
- Gas Mileage Calculator
- Kilometers per Liter Fuel Economy Calculator
- Liters per 100 Kilometers Fuel Consumption Calculator
- Speedometer Error Calculator
- Speedometer Gear Calculator
- Tire Comparison Calculator
- Tire Size Calculator
- Tire Size Conversion Calculator
- Wheel Offset Calculator
Cooking & Baking
Driveway
Electrical
- Electricity Cost Calculator
- Lighting Energy Cost Calculator
- Coulomb’s Law Charge Calculator
- LED Resistor Calculator
- Ohm’s Law Calculator
- Parallel Plate Capacitance Calculator
- Parallel Resistance Calculator
- Peak Voltage Calculator
- Peak to Peak Voltage Calculator
- Power Factor Calculator
- Resistor Capacitor Circuit Calculator
- RMS Voltage Calculator
- Series Resistance Calculator
- Voltage Divider Calculator
- Voltage Drop Calculator
- Wire Gauge Calculator
Electrical (Conversion)
- Amp-Hours to Kilowatt-Hours Calculator
- Amps to Horsepower Calculator
- Amps to Kilovolt-Amps Calculator
- Amps to Kilowatts Calculator
- Amps to Volt-Amps Calculator
- Amps to Volts Calculator
- Amps to Watts Calculator
- Capacitance to Charge Calculator
- Charge to Capacitance Calculator
- Horsepower to Amps Calculator
- Horsepower to Kilovolt-Amps Calculator
- Joules to Volts Calculator
- Joules to Watts Calculator
- Kilovolt-Amps to Amps
- Kilovolt-Amps to Horsepower Calculator
- Kilovolt-Amps to Kilowatts Calculator
- Kilovolt-Amps to Volt-Amps Calculator
- Kilovolt-Amps to Watts Calculator
- Kilowatt-Hours to Amp-Hours Calculator
- Kilowatt-Hours to Kilowatts Calculator
- Kilowatt-Hours to Watts Calculator
- Kilowatts to Amps Calculator
- Kilowatts to Kilovolt-Amps Calculator
- Kilowatts to Kilowatt-Hours Calculator
- Kilowatts to Volt-Amps Calculator
- Milliamp-Hours to Watt-Hours Calculator
- Volts to Amps Calculator
- Volts to Joules Calculator
- Volts to Watts Calculator
- Volt-amps to Amps Calculator
- Volt-Amps to Kilovolt-Amps Calculator
- Volt-amps to Kilowatts Calculator
- Watts to Amps Calculator
- Watts to Joules Calculator
- Watts to Kilovolt-Amps Calculator
- Watts to Kilowatt-Hours Calculator
- Watts to Volts Calculator
- Watt-Hours to Milliamp-Hours Calculator
Flooring
Health & Fitness
- Army Combat Fitness Test Calculator
- Air Force PFT Calculator
- Army Body Fat Percentage Calculator
- Baby Growth Percentile Calculator
- BMI Calculator
- BAC Calculator
- BMR Calculator
- Body Fat Calculator
- Body Shape Calculator
- Body Surface Area Calculator
- Calorie Density Calculator
- Calorie Calculator
- Calories Burned Calculator
- Calories Burned Biking Calculator
- Calories Burned Running Calculator
- Calories Burned Swimming Calculator
- Calories Burned Walking Calculator
- Carbohydrate Intake Calculator
- Child BMI Calculator
- Child Height Percentile Calculator
- Child Height Prediction Calculator
- Child Weight Percentile Calculator
- Desk Height Calculator
- Distance to Steps Calculator
- Fat Intake Calculator
- FFMI Calculator
- Height Converter
- Ice Rink Volume Calculator
- Ideal Body Weight Calculator
- IQ Percentile Calculator
- Keto Calculator
- Lean Body Mass Calculator
- Macros Calculator
- Navy PRT Calculator
- Navy Body Fat Percentage Calculator
- One Rep Max Calculator
- Pace and Distance Calculator
- Protein Intake Calculator
- RMR Calculator
- Steps to Distance Calculator
- Target Heart Rate Calculator
- TDEE Calculator
- USMC PFT/CFT Calculator
- Waist to Hip Ratio Calculator
- Water Intake Calculator
- Weight Loss Calculator
Landscaping
Math (Fractions)
- Add Fractions Calculator
- Compare Fractions Calculator
- Decimal to Fraction Calculator
- Fraction Calculator
- Fraction to Decimal Calculator
- Fraction to Mixed Number Calculator
- Fraction to Percent Calculator
- Fraction to Ratio Calculator
- Mixed Number to Fraction Calculator
- Order Fractions Calculator
- Fraction Simplifier
- Subtract Fractions Calculator
- Solve For Unknown Fraction Calculator
Math (Geometry)
- Area Calculator
- Barrel Volume Calculator
- Circle Calculator
- Circle Area Calculator
- Circumference Calculator
- Decimal to Degrees Calculator
- Degrees, Minutes, and Seconds to Decimal Calculator
- Ellipse Calculator
- Perimeter Calculator
- Rise and Run to Degrees Calculator
- Rise and Run to Percent Calculator
- Slope Calculator
- Surface Area Calculator
- Volume Calculator
Math (Other)
Math (Percentage)
- Decimal to Percent Calculator
- Percent Change Calculator
- Percent Decrease Calculator
- Percent Difference Calculator
- Percent Error Calculator
- Percent Increase Calculator
- Percent to Decimal Calculator
- Percent to Fraction Calculator
- Percent to Ratio Calculator
- Percent to Total Calculator
- Percentage Calculator
- Percentage of a Percentage Calculator
Math (Ratio)
Math (Statistics)
Math (Trigonometry)
- Inverse Cosine Calculator
- Inverse Sine Calculator
- Inverse Tangent Calculator
- Cosecant Calculator
- Cosine Calculator
- Cotangent Calculator
- Secant Calculator
- Sine Calculator
- Tangent Calculator
- 30 60 90 Special Right Triangle Calculator
- 45 45 90 Special Right Triangle Calculator
- Equilateral Triangle Calculator
- Heron's Formula Calculator
- Isosceles Triangle Calculator
- Pythagorean Theorem Calculator
- Right Triangle Calculator
- Triangle Area Calculator
- Triangle Height Calculator
- Triangle Hypotenuse Calculator
- Triangle Perimeter Calculator
- Trigonometry Calculator
- Unit Circle Calculator
Measurement
Other
- American Flag Size Calculator
- Aquarium Tank Volume Calculator
- Aquarium Tank Weight Calculator
- Density Calculator
- Flow Rate Calculator
- Metal Weight Calculator
- Percent Off Calculator
- Ping Pong Ball Swimming Pool Fill Calculator
- Pool Volume Calculator
- Sale and Discount Price Calculator
- PayPal Fee Calculator
- Snow Water Equivalent Calculator
- Snow Weight Calculator
- Tank Volume Calculator
- Water Velocity Calculator
- Water Weight Calculator
- Freight Class Calculator
- Dimensional Shipping Weight Calculator
- Tip Calculator
- Unit Price Calculator
- Unit Rate Calculator
Plumbing & HVAC
Roofing
Siding
TV & Video
Time
- Add Times Calculator
- Age Calculator
- Cat Age Calculator
- Dog Age Calculator
- Hours to HH:MM:SS Time Calculator
- Minutes to HH:MM:SS Time Calculator
- Seconds to HH:MM:SS Time Calculator
- Subtract Times Calculator
- Time to Decimal Calculator
- Time to Hours Calculator
- Time to Minutes Calculator
- Time to Seconds Calculator