Tons or Tons Force per Square Inch (USA, Short) is one of the largest pressure units and is used in the measurement of ultra high pressures. 1 ton per square inch (usa, short) equals 13,789,500 pascals.

This is the American version of tons per square inch which uses the so called short ton that is equal to 2,000 pounds (lbs).

The tsi (usa, short) pressure unit is not often used to define gas or liquid pressure in manmade processes due to its magnitude, but it is more useful in defining geological pressures such as ocean pressures on the Seabed or the build-up pressures in Volcanoes. It is also used as a measure of the strength of a material or the level of mechanical stress exerted on a material.

To calculate the equivalent value in other pressure units for 1 ton per square inch (usa, short) please view the list below.

To convert into tsi (usa, short), please click on the required pressure unit below to obtain the conversion factor.

Convert many different pressure values from and into Tons per Square Inch (usa, short) using this sites online pressure conversion tool.

See the calculation for tsi (usa, short) from SI units and confirm the description for a tsi (usa, short) pressure unit.

## Conversion Factors

- 137.895 bar
- 2000 psi
- 137895 mbar
- 13789500 N/m²
- 13789500 Pa
- 137895 hPa
- 13789.5 kPa
- 13.7895 MPa
- 140.614 kg/cm²
- 1406140 mmH2O 4°C (39.2°F)
- 140614 cmH2O 4°C (39.2°F)
- 1406.14 mH2O 4°C (39.2°F)
- 55359.8 inH2O 4°C (39.2°F)
- 4613.32 ftH2O 4°C (39.2°F)
- 103430 mmHg 0°C (32°F)
- 10343.0 cmHg 0°C (32°F)
- 4072.04 inHg 0°C (32°F)
- 103430 Torr
- 103430000 mTorr
- 136.092 atm
- 140.614 at
- 137895000 dyn/cm²
- 32000 oz/in²
- 103430000 µHg 0°C (32°F)
- 0.892857 tsi (uk, long)
- 1 tsi (usa, short)
- 144 tsf (usa, short)
- 288000 psf
- 140614 g/cm²

*Please note that the conversion factors above are accurate to 6 significant figures.*

## Derivation

The calculation below shows how the pressure unit Tons per Square Inch (USA, Short) (tsi) is derived from SI Units.

#### Formula

- Pressure = Force / Area
- Force = Mass x Acceleration
- Acceleration = Distance / (Time x Time)

#### SI Units

- Mass: kilogram (kg)
- Length: metre (m)
- Time: second (s)
- Force: newton (N)
- Pressure: pascal (Pa)

#### Input Values

- 1 Ton (usa, short) = 2000 lbs
- 1 Pound = 0.45359237 kg
- 1 Inch = 0.0254 m
- 1 Square Inch = 0.0254 m x 0.0254 m = 0.00064516 m²
- Acceleration = Standard Gravity = 9.80665 m/s²

#### Calculation

- 1 Ton Force (usa, short) = 2000 lbs x 0.45359237 kg x 9.80665 m/s² = 8896.443231 N
- 1 tsi (usa, short) Pressure = 9964.016418 N / 0.00064516 m² = 13789514.59 Pa

## Alternate Descriptions

These are the different versions used for identifying tsi (usa, short) that you may find elsewhere.

- Ton per Square Inch
- Ton Force per Square Inch
- Tons per Square Inch
- Tons Force per Square Inch
- tsi
- tfsi
- ton/in²
- tons/in²
- ton/in^2
- tons/in^2
- ton/sq in
- tons/sq in
- tonf/in²
- tonsf/in²
- tonf/in^2
- tonsf/in^2
- tonf/sq in
- tonsf/sq in