Calculators and Converters
Choose from a multitude of free calculators and converters in the areas of finance, health, cooking, math and science 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 your monthly repayments for personal loans, student loans or mortgages.
- Compound Interest (Daily)
- Amortization Calculator
- APY Calculator
- CAGR Calculator
- Car Loan Calculator
- Credit Card Repayment
- Currency Converter
- Forex Compounding
- How Long to Save
- Hourly to Salary Calculator
- Interest Rate Calculator
- IRR Calculator
- Loan Payoff Calculator
- Margin Calculator
- Price Per Square Foot
- Salary to Hourly Calculator
- Savings Calculators
- Savings Goal Calculators
- Simple Interest Calculator
- Time Card 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
- Gallons to Ounces
- Gallons to Pounds
- Hertz to Seconds
- Inch-pounds to ft-lb
- Inches to Centimeters
- Liters to Gallons
- 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 Cubic Feet
- Square Feet to Cubic Yards
- 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 Until...
- Decimal to Fractions
- Density Calculator
- Fractions Calculators
- Gravel Calculator
- Hex to Decimal Converters
- LED Savings Calculator
- Mulch Calculator
- Percentage Calculator
- Percentage Change
- Roman Numerals
- Sig Figs 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.
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
How to Calculate Square Footage
Whether you're shopping for carpet, or planning a landscaping or home improvement project, one essential concept is calculating square footage. Join us as we discuss the steps involved in the process.Square Footage Calc...
As I look back to my younger years, I remember finding it difficult to decide on an effective saving strategy and to know how much money I should be putting aside. There were items I wanted to save for and buy, and I had to weigh up the benefits of setting aside more money for them against short-ter...
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.
Whether you're ordering clothes online, monitoring your weight, or designing a bespoke bucket chair for your space-shuttle to the moon (look, the world is on fire; it's OK to have a plan B), you need to be able to measure your body accurately. Here's how to get the digits for your waist.
