Convert centimeter mercury (0°C) to ton-force (long)/square inch
Please provide values below to convert centimeter mercury (0°C) [cmHg] to ton-force (long)/square inch [tonf (UK)/in^2], or Convert ton-force (long)/square inch to centimeter mercury (0°C).
How to Convert Centimeter Mercury (0°c) to Ton-Force (Long)/square Inch
1 cmHg = 8.63248990854292e-05 tonf (UK)/in^2
Example: convert 15 cmHg to tonf (UK)/in^2:
15 cmHg = 15 × 8.63248990854292e-05 tonf (UK)/in^2 = 0.00129487348628144 tonf (UK)/in^2
Centimeter Mercury (0°c) to Ton-Force (Long)/square Inch Conversion Table
| centimeter mercury (0°C) | ton-force (long)/square inch |
|---|
Centimeter Mercury (0°c)
Centimeter mercury (0°C) is a unit of pressure measurement representing the pressure exerted by a one-centimeter column of mercury at 0°C.
History/Origin
The centimeter mercury was historically used in barometry and pressure measurements before the adoption of the pascal. It originated from the use of mercury columns in barometers to measure atmospheric pressure, with the unit reflecting the height of the mercury column.
Current Use
Today, the centimeter mercury is largely obsolete and replaced by SI units like the pascal. However, it is still used in some medical and historical contexts to measure blood pressure and atmospheric pressure in certain regions.
Ton-Force (Long)/square Inch
Ton-force per square inch (tonf/in²) is a unit of pressure representing the force exerted by one ton-force distributed over an area of one square inch.
History/Origin
The ton-force (long) originated from the imperial system of units used in the UK, where it was defined as the force exerted by a long ton (2,240 pounds) under standard gravity. It has been used historically in engineering and pressure measurements but has largely been replaced by SI units.
Current Use
Today, ton-force per square inch is rarely used in modern engineering, having been largely replaced by pascals (Pa) or pounds per square inch (psi). It may still appear in legacy systems or specific industrial contexts in the UK.