Pressure Converter
Convert pressure values between pascals, bar, psi, atmospheres, torr, and other standard units.
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Convert pressure measurements across metric, imperial, and manometric units with this online conversion tool. Pressure readings appear in diverse engineering, meteorological, and laboratory contexts, requiring quick translation between distinct standards. This tool supports eleven widely used units: pascals, kilopascals, megapascals, bar, millibar, pounds per square inch (psi), standard atmospheres, torr, millimeters of mercury (mmHg), inches of mercury (inHg), and inches of water. To calculate a conversion, enter any numeric value, select your starting unit, and choose your target measurement unit. The default setup converts zero pascals into psi. When you run the tool with valid numeric inputs, the interface displays the converted numerical value rounded to ten decimal places alongside formatted text showing up to six significant digits. For example, converting 1 bar yields 100,000 pascals, while 1 standard atmosphere converts to approximately 14.6959 psi. If an unrecognized unit is entered, the conversion will not proceed.
Instructions
- Enter the numeric pressure value you want to convert in the Value field.
- Choose your original unit from the From unit dropdown menu.
- Choose your desired destination unit from the To unit dropdown menu.
- Run the tool to view the converted value and its formatted display text.
Examples
- Convert 1 bar to pascals: enter 1 in Value, select Bar as the source unit, and choose Pascals as the target unit to receive 100,000 Pa.
- Convert 1 standard atmosphere to psi: enter 1 in Value, select Atmospheres as the source unit, and choose Psi as the target unit to receive approximately 14.6959 psi.
- Convert 1 psi to kilopascals: enter 1 in Value, select Psi as the source unit, and choose Kilopascals as the target unit to receive approximately 6.89476 kPa.
FAQ
Which pressure units are supported by this converter?
The converter supports pascals, kilopascals, megapascals, bar, millibar, psi, standard atmospheres, torr, millimeters of mercury (mmHg), inches of mercury (inHg), and inches of water.
How are the converted values rounded in the output?
The precise numeric output is rounded up to 10 decimal places, while the formatted text display presents up to 6 significant digits for convenient reading.
What happens if a non-numeric text string is entered?
If an alternate text value is provided, the tool attempts to parse it into a number. If parsing fails or the field is empty, the input value defaults to 0.
What happens if an unsupported unit is selected?
The conversion requires valid and recognized source and destination units. If an unrecognized unit is submitted, the tool does not calculate a converted value.