Weight to Pressure Calculator

Formula: Pressure = Force / Area

This calculator converts weight to force (if necessary) and then calculates pressure by dividing force by area.

Here’s a comprehensive table with all the essential information about converting weight to pressure:

Aspect Information Basic Formula Pressure = Force / Area Force from Weight Force = Weight × g (acceleration due to gravity) Standard g 9.80665 m/s²

Key Conversion Factors:
From To Multiply by kg N (force) 9.80665 lb N (force) 4.44822 N Pa (for 1 m²) 1 Pa psi 0.000145038 Pa bar 0.00001 Pa atm 0.00000986923

Common Weight Units to Newtons:
Weight Unit Equivalent in Newtons 1 kg 9.80665 N 1 g 0.00980665 N 1 lb 4.44822 N

Common Area Units to Square Meters:
Area Unit Equivalent in m² 1 cm² 0.0001 m² 1 mm² 0.000001 m² 1 in² 0.00064516 m² 1 ft² 0.09290304 m²

Pressure Units Conversion:
Pressure Unit Equivalent in Pascals (Pa) 1 Pa 1 Pa 1 kPa 1,000 Pa 1 bar 100,000 Pa 1 atm 101,325 Pa 1 psi 6,894.75729 Pa 1 mmHg 133.322 Pa

Important Points:
Ensure units are consistent before calculation (e.g., all SI or all Imperial).
Weight must be converted to force before calculating pressure.
Pressure is inversely proportional to area for a given weight.
Example Calculations:
100 kg on 1 m²:
Force = 100 kg × 9.80665 m/s² = 980.665 N
Pressure = 980.665 N / 1 m² = 980.665 Pa
200 lb on 2 ft²:
Force = 200 lb × 4.44822 N/lb = 889.644 N
Area = 2 ft² × 0.09290304 m²/ft² = 0.18580608 m²
Pressure = 889.644 N / 0.18580608 m² = 4,788.57 Pa ≈ 0.69 psi
Applications:
Structural engineering (load-bearing calculations)
Tire pressure
Fluid dynamics
Soil mechanics
Material testing
Safety Considerations:
Always use appropriate safety factors in engineering calculations.
Consider dynamic loads in addition to static loads where applicable.
Be aware of material strength limits when calculating applied pressures.
This table and additional information provide a comprehensive overview of converting weight to pressure, including key formulas, conversion factors, and practical considerations. This knowledge is crucial for engineers, physicists, and technicians working in fields where weight and pressure calculations are common.