Tyre pressure: the right pressure in bar and psi for cars, trailers and bikes
Where the correct tyre pressure is written, how psi, bar and kPa relate, and what applies in winter, with a load, for the trailer…
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Browse our most used categories for quick access to unit conversions.
- Length Meter, kilometer, mile, foot, inch and more.
- Mass Kilogram, gram, pound, ounce and more.
- Temperature Celsius, Fahrenheit, Kelvin and more.
- Volume Liter, milliliter, gallon and more.
- Area Square meter, hectare, acre and more.
- Speed Km/h, m/s, mph, knots and more.
- Time Seconds, minutes, hours, days and more.
- Energy Joule, kilojoule, watt-hour and more.
- Pressure Pascal, bar, psi and more.
- Power Watt, kilowatt, horsepower and more.
- Data storage Byte, kilobyte, megabyte and more.
- Data rate Bit/s, Mb/s, GB/s and more.
- Fuel consumption l/100 km, km/l, mpg and more.
- Force Newton, kilonewton, pound-force and more.
- Torque Newton meter, kilopond meter, pound-foot and more.
- Frequency Hertz, kilohertz, rpm and more.
- Voltage Volt, millivolt, kilovolt and more.
- Resistance Ohm, kiloohm, megaohm and more.
- Capacitance Farad, microfarad, picofarad and more.
Popular conversions
Jump straight to the most-used unit conversions.
- Cup to deciliter
- Kelvin to degree celsius
- Watt to kilowatt
- Kilogram to gram
- Liters per kilometer to kilometers per liter
- Second to minute
- Meter to kilometer
- Kilogram per square centimeter to bar
- Meter per second to kilometer per hour
- Bit to byte
- Kilogram-force to kilonewton
- Terawatt hour to gigawatt hour
Guides
Answers a converter cannot give: tyre pressure, TV sizes, steps to km and more.
How far is 10,000 steps? Steps to km, time and calories
Step length decides: 10,000 steps is 6.5 to 8 km. Tables for steps to km and km to steps, step length by height, time…
Cups to dl and other US recipe measurements in metric
Cups, tablespoons, sticks and ounces converted to decilitres and grams, with a table for every fraction of a cup and what a cup weighs.
How much soil, gravel or concrete do I need? Square metres to cubic metres and tonnes
Work out cubic metres and tonnes from area and depth, with weight per cubic metre for soil, gravel, crushed stone and concrete, bags per…
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Prefix ladder
Interactive prefix ladder through the entire SI scale: see how the decimal point moves - from yotta to yocto.
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