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

## Measurement Unit Related Terms

More pages related to measurement unit technical terms.

- at – Technical Atmosphere Pressure Unit
- atm – Standard Atmosphere Pressure Unit
- bar Pressure Unit
- cmH2O – Centimetres of Water Column at 4 deg C Pressure Unit
- cmHg – Centimetres of Mercury at 0 deg C Pressure Unit
- daPa – Dekapascal Pressure Unit
- dyn/cm² – Dyne per Square Centimetre Pressure Unit
- ftH2O – Feet of Water Column at 4 deg C Pressure Unit
- g – Acceleration due to Gravity
- g/cm² – Grams per Square Centimetre Pressure Unit
- hPa – Hectopascal Pressure Unit
- inH2O – Inches of Water Column at 4 deg C Pressure Unit
- inHg – Inches of Mercury at 0 degrees C Pressure Unit
- kg/cm² – Kilogram per Square Centimetre Pressure Unit
- kg/mm² – Kilogram per Square Millimetre Pressure Unit
- kPa – Kilopascal Pressure Unit
- ksi – Kilopounds per Square Inch Pressure Unit
- mbar – Millibar Pressure Unit
- mH2O – Metres of Water Gauge at 4 deg C Pressure Unit
- mmH2O – Millimetres of Water Column at 4 deg C Pressure Unit
- mmHg – Millimetres of Mercury at 0 deg C Pressure Unit
- MPa – Megapascal Pressure Unit
- mPa – Millipascal Pressure Unit
- mTorr – Millitorr Pressure Unit
- N/cm² – Newton per Square Centimetre Pressure Unit
- N/m2 – Newton per Square Metre Pressure Unit
- N/mm² – Newton per Square Millimetre Pressure Unit
- oz/in² – Ounce per Square Inch Pressure Unit
- Pa – Pascal Pressure Unit
- Pressure
- Pressure Units
- psf – Pounds per Square Foot Pressure Unit
- psi – Pounds per Square Inch Pressure Unit
- Specific Gravity
- Torr Pressure Unit
- tsf – Tons per Square Foot (USA, Short) Pressure Unit
- tsi – Tons per Square Inch (UK, Long) Pressure Unit
- Water Density
- µHg – Micron of Mercury at 0 deg C Pressure Unit