Free Calculators and Converters
An extensive collection of free, highly-rated online calculators and converters covering finance, construction, education, health, cooking and math for everyday use.
Financial Calculators
A suite of financial calculators to assist with projections for savings, investments, loans, mortgages and small business calculations.
Use our compound interest calculator to determine the future value of your savings or investments over time.
Loan CalculatorCalculate repayments for personal loans, student loans or mortgages. You can also incorporate extra payments.
- Compound Interest (Daily)
- Amortization Calculator
- APY Calculator
- Boat Loan Calculator
- CAGR Calculator
- Car Loan Calculator
- Credit Card Repayment
- Forex Compounding
- How Long to Save
- Hourly to Salary Calculator
- Interest Rate Calculator
- IRR Calculator
- Loan Payoff Calculator
- Margin Calculator
- Million to Billion Converter
- Price Per Square Foot
- Salary to Hourly Calculator
- Savings Calculators
- Savings Goal Calculators
- Simple Interest Calculator
- SIP Calculator
- Time and a Half Calculator
Featured Conversions
A series of individual converters for popular weight, length, height, area and energy units.
Convert between these popular units of weight in the imperial and metric systems.
Centimeters to feet & inchesOur popular calculator for converting units of height, length or distance.
- Grams to Pounds
- Kilos to Pounds
- Stones to Pounds
- Centimeters to Inches
- Cubic Yards to Tons
- Feet to Inches
- Feet to Meters
- Gallons to Ounces
- Gallons to Pounds
- Hertz to Seconds
- Inch-pounds to ft-lb
- Inches to Centimeters
- Inches to Feet
- Liters to Gallons
- Liters to Ounces
- Liters to Tons
- Lumens to Watts
- Meters to Feet & Inches
- Micrograms to mg
- Milligrams to Grams
- Millimeters to Inches
- Newton-Meters to ft lb
- Ounces and Pounds
- Square Feet to Acres
- Square Feet to Cubic Feet
- Square Feet to Cubic Yards
- Square Meters to Square Feet
- Watts to Amps
Health
A small collection of health calculators, from BMI and BMR through to pregnancy and exercise.
Calculate how many miles you've walked and how many calories you've burned for your walk or run.
Pregnancy CalculatorUse our calculator to work out your possible due date and see the key milestones on your pregnancy journey.
Handy and Fun
A collection of handy calculators for DIY construction projects as well as math calculators and a selection of tools for calculating dates.
Work out the square footage of an area for flooring, landscaping, carpets, or other construction projects.
Birthday CalculatorDiscover what day you were born on, your star sign, celebrities you share your birthday with and more.
- Age Calculator
- Chronological Age
- Cubic Feet Calculator
- Cubic Meters Calculator
- Cubic Yards Calculator
- Date Calculator
- Days Between Dates
- Days From Today
- Days Until...
- Decimal to Fraction
- Density Calculator
- Electricity Cost Calculator
- Fractions Calculators
- Gravel Calculator
- Hex to Decimal Converters
- How Much Flooring do I Need?
- LED Savings Calculator
- Mulch Calculator
- Percentage Calculator
- Percentage Change
- Roman Numerals
- Sig Figs Calculator
- Final Grade Calculator
- Uni Grade Calculator
Cooking Calculators
A suite of recipe calculators to help you with converting between metric and imperial units when baking or cooking.
Use this recipe converter to quickly convert between all common units involved in cooking.
Cups to GramsConvert easily between cups and grams using this handy conversion tool.
- Baking Conversions
- Butter Converter
- Cups to mL
- Cups to Ounces
- Cups to Tablespoons
- Grams to Cups
- Grams to Ounces
- Grams to Tablespoons
- Grams to Teaspoons
- mL to Grams
- Ounces to Grams
- Ounces to mL
- Oven Temperatures
- Pints to Cups
- Pounds and Cups
- Quarts to Cups
- Tablespoons to Teaspoons
- Teaspoons to Grams
- Teaspoons to mL
Unit Conversions
A series of unit converters for area, energy, fuel consumption, length & distance, volume, weight and more.
Convert between acres, square centimeters, square feet, square miles and other units of area.
Height ConverterUse this converter to change imperial measurements of height into metric, and vice-versa.
Featured Articles
Why I've Chosen Ezoic as a Partner
People often ask me how I manage to fund my website, so I thought I'd write a little article about this today. To be able to dedicate a large amount of time to a project like this, and cover the costs associated with it, you need to be able to find a way to fund it...
Future Value Formula And Calculator
The future value formula helps you calculate the future value of an investment (FV) for a series of regular deposits at a set interest rate (r) for a number of years (t).Using the formula requires that the regular payments are of the same amount each time, with the resulting value incorporating inte...
Compound Interest Formula - Explained
An in-depth look at the compound interest formula as we break down how to calculate compound interest. The concept of compound interest is that interest is added back to the principal sum so that interest is earned on that added interest during the next compounding period.
Are the calculators on our site free to use?
Yes, all the online calculators on The Calculator Site are free for you to use at your convenience. Our website is funded by the advertising we feature on our pages.
We hope you find our calculators useful. You can learn more about The Calculator Site and the causes we support (tree planting) on our about page.
