Dead Weight Tester Mass & Area to Pressure Calculator

Dead Weight Tester Parameters
Mass (m) [?]
Select mass unit micrograms (µg or mcg) milligrams (mg) grams (g) ounces (oz) pounds (lb) kilograms (kg)
Effective Area (A) [?]
Select area unit sq millimetres (mm²) sq centimetres (cm²) sq inches (in²)
Local Gravity (ms-2) [?]
Calculate Pressure
Pressure (P) [?]
Select pressure unit bar psi kg/cm² mbar kPa Pa Pa hPa kPa MPa N/m² N/mm² bar mbar mmH₂O 4°C cmH₂O 4°C dmH₂O 4°C mH₂O 4°C inH₂O 4°C ftH₂O 4°C mmHg 0°C cmHg 0°C inHg 0°C g/cm² kg/cm² dyn/cm² oz/in² psi ksi tsi uk long tsi us short tsf us short psf atm at Torr mTorr bar centimetres of mercury at 0°C centimetres of water at 4°C decimetres of water at 4°C dynes per sq centimetre feet of water at 4°C grams per sq centimetre hectopascals inches of mercury at 0°C inches of water at 4°C kilograms per sq centimetre kilopascals kilopounds per sq inch megapascals metres of water at 4°C microns of mercury at 0°C millibars millimetres of mercury at 0°C millimetres of water at 4°C millitorrs newtons per sq metre newtons per sq millimetre ounces per sq inch pascals pounds per sq foot pounds per sq inch standard atmospheres technical atmospheres tons per sq foot (us short) tons per sq inch (uk long) tons per sq inch (us short) torrs

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User Guide

This online tool will calculate the pressure generated by a dead weight tester pressure calibrator by entering the total mass of added weights, the effective area of the piston-cylinder and the local gravity.

Formula

The formula used by this calculator to determine the pressure generated by the dead weight tester is:

F = m·g

P = F/A

P = m·g/A

Symbols

• P = Pressure
• F = Force
• A = Area
• m = Mass
• g = Acceleration due to gravity

Mass of Dead Weights (m)

Enter the total mass of weights added to the dead weight tester.

Effective Area (A)

Enter the effective area of the dead weight tester, which you should find in the manufacturer’s documentation or instrument labelling.

Local Gravity (g)

Enter the acceleration due to gravity for your geographical location in metres per second per second (ms^-2). The local gravity is dependent on several factors such as latitude, height above sea-level, local geological density, etc… Refer to your national geological survey data for your location or use this local gravity calculator to determine a close approximation. The default value is set to 9.80665 ms^-2 which is standard gravity.

Generated Pressure (P)

This is the pressure produced by a dead weight tester with the entered quantities for mass, area and gravity.

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