How many bar in 1 psi?
1 psi = 0.06894757293 bar. The other way round: 1 bar = 14.50377377 psi. Pounds per square inch is the pressure unit for tyres and compressors in the US; 1 psi ≈ 6,894.76 Pa. One bar is exactly 100,000 Pa, close to air pressure at sea level (1.01325 bar). Tyre pressure in Europe is usually given in bar.
PSI to bar conversion table
1 psi = 0.0689 bar · 2 psi = 0.1379 bar · 3 psi = 0.2068 bar · 4 psi = 0.2758 bar · 5 psi = 0.3447 bar · 6 psi = 0.4137 bar · 7 psi = 0.4826 bar · 8 psi = 0.5516 bar · 9 psi = 0.6205 bar · 10 psi = 0.6895 bar · 12 psi = 0.8274 bar · 15 psi = 1.0342 bar · 20 psi = 1.379 bar · 25 psi = 1.7237 bar · 30 psi = 2.0684 bar · 40 psi = 2.7579 bar · 50 psi = 3.4474 bar · 75 psi = 5.1711 bar · 100 psi = 6.8948 bar · 1,000 psi = 68.9476 bar
How to convert psi to bar
Divide the value by 14.50377377. Example: 37 psi = 2.5511 bar.
Unit Converter
How to use
- 1Pick a category — length, weight, temperature, volume, area, speed, data, time, pressure or energy.
- 2Choose the “from” and “to” units, or press swap to reverse them.
- 3Type a value in either field — the other side updates as you type.
- 4Adjust the decimal precision and check the conversion table for common values.
Exact conversion factors
Many imperial units are defined exactly in metric terms: 1 inch = 2.54 cm, 1 foot = 0.3048 m, 1 mile = 1.609344 km, 1 pound = 0.45359237 kg and 1 US gallon = 3.785411784 litres. The converter uses these definitions, so results are as precise as the decimals you choose to show. The formula is displayed in words — for example “multiply by 2.54” — so you can repeat the calculation by hand.
Temperature is different
Celsius, Fahrenheit and Kelvin do not share a zero point, so temperature cannot be converted with a single factor. °F = °C × 9/5 + 32 and °C = (°F − 32) × 5/9; Kelvin is Celsius + 273.15. That is why 0 °C is 32 °F, while a 10-degree change in Celsius is an 18-degree change in Fahrenheit.
US vs UK units and data sizes
A US gallon (3.785 L) is smaller than an imperial UK gallon (4.546 L), and US fluid ounces differ slightly from UK ones — check which system your recipe or spec uses. For data sizes, storage makers use decimal units (1 GB = 1,000 MB), while operating systems often count in binary units (1 GiB = 1,024 MiB), which is why a new drive shows less capacity than the label.
Frequently asked questions
How many centimetres are in an inch?
Exactly 2.54 cm. To convert cm to inches, divide by 2.54.
How do I convert kg to pounds?
Multiply kilograms by about 2.20462. One pound is exactly 0.45359237 kg.
How do I convert Celsius to Fahrenheit?
Multiply by 9/5 and add 32. For example, 20 °C × 1.8 + 32 = 68 °F.
Can I convert in both directions?
Yes. Type in either field and the other updates, or press swap to switch the units.
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