Useful tools, without the noise.
Calculators, converters, and everyday utilities that get you a result fast — no sign-up, no clutter.
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Converters, calculators, date and time tools, and text utilities — all free, all running in your browser.
Power Tools
Interactive planners and simulators for bigger decisions.
Calculators
Math, percentage, and finance calculators.
Converters
Convert between units, currencies, and formats.
Date & Time
Age, duration, and date arithmetic.
Text Tools
Word count, case conversion, and text comparison.
Coming later: File Tools, Image Tools, PDF Tools, Developer Tools, Data Tools, Fun & Discovery.
Popular tools
Household Budget Planner
Enter what comes in and what goes out at whatever frequency you pay it, and see weekly, monthly and annual figures, where the money goes, and how much a savings plan would change the picture.
Mortgage & Debt Simulator
See what a mortgage really costs and how to pay it off sooner - extra repayments, an offset account, lump sums, interest-only periods and rate changes - then plan the fastest route out of several debts with the snowball or avalanche method.
Small Business Dashboard
Record your sales and costs and see revenue, profit and cash side by side, by week, month or year. The dashboard keeps what has happened (actual) apart from what is projected (forecast), and shows when profit and cash tell different stories.
Kilograms to Pounds Converter (kg to lb)
Convert Kilograms to Pounds instantly, with the exact formula and a quick-reference table.
Centimetres to Inches Converter (cm to in)
Convert Centimetres to Inches instantly, with the exact formula and a quick-reference table.
Celsius to Fahrenheit Converter (°C to °F)
Convert Celsius to Fahrenheit instantly, with the exact formula and a quick-reference table.
Litres to US Gallons Converter (L to gal (US))
Convert Litres to US Gallons instantly, with the exact formula and a quick-reference table.
Kilometres per Hour to Miles per Hour Converter (km/h to mph)
Convert Kilometres per Hour to Miles per Hour instantly, with the exact formula and a quick-reference table.
Percentage Calculator
Work out a percentage of a number, find what percentage one number is of another, or find the whole from a part and its percentage.
Average Calculator
Find the mean, sum, and count of a list of numbers.
Discount Calculator
Work out the final price after a percentage discount.
Compound Interest Calculator
Calculate interest that compounds over time.
Age Calculator
Work out an exact age in years, months and days, plus the total number of days lived.
Days Between Dates
Count the number of days from one date to another.
Word Counter
Paste or type text to count its words, characters, sentences, paragraphs and lines instantly, with an estimated reading time.
Case Converter
Paste or type text and convert it to upper case, lower case, sentence case, title case, camelCase, snake_case and more, instantly.
All tools
Popular conversions
- Kilograms to Pounds Converter (kg to lb)
- Pounds to Kilograms Converter (lb to kg)
- Kilograms to Stone Converter (kg to st)
- Grams to Ounces Converter (g to oz)
- Centimetres to Inches Converter (cm to in)
- Inches to Centimetres Converter (in to cm)
- Feet to Metres Converter (ft to m)
- Metres to Feet Converter (m to ft)
- Kilometres to Miles Converter (km to mi)
- Miles to Kilometres Converter (mi to km)
- Celsius to Fahrenheit Converter (°C to °F)
- Fahrenheit to Celsius Converter (°F to °C)
- Square Metres to Square Feet Converter (m² to ft²)
- Square Feet to Square Metres Converter (ft² to m²)
- Acres to Hectares Converter (ac to ha)
- Litres to US Gallons Converter (L to gal (US))
- US Gallons to Litres Converter (gal (US) to L)
- Kilometres per Hour to Miles per Hour Converter (km/h to mph)
- Miles per Hour to Kilometres per Hour Converter (mph to km/h)
- PSI to Bar Converter (psi to bar)
- Kilowatts to Mechanical Horsepower Converter (kW to hp)
Calculators
- Percentage Calculator
- Percentage Change Calculator
- Percentage Increase / Decrease Calculator
- Fraction to Percentage Calculator
- Percentage to Fraction Calculator
- Average Calculator
- Ratio Calculator
- Proportion Calculator
- Discount Calculator
- Markup Calculator
- Margin Calculator
- Simple Interest Calculator
- Compound Interest Calculator
- Fraction Calculator
- Weighted Average Calculator
- Loan Calculator
- Mortgage Calculator
- Sales Tax / GST / VAT Calculator
- Tip Calculator