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Torr to kPa Converter
↔ Convert kPa to torr instead

Common Conversions

torr kPa
1 0.133
5 0.667
10 1.333
25 3.333
50 6.666
100 13.332
200 26.664
400 53.329
500 66.661
600 79.993
760 101.325
1000 133.322

Why this conversion matters in chemistry

Vacuum gauges read in torr, safety documentation is written in kPa, and both describe the same physical pressure. The factor is 0.133322 kPa per torr — a number that drops straight out of the definition, since 760 torr equals one standard atmosphere equals 101.325 kPa. Reach for the conversion when a sublimation recipe reports a target of 100 torr and an SI-aligned process sheet wants that value as 13.3 kPa, or when a vapor-pressure table ends in torr and a Clausius-Clapeyron fit has the rest of its data in kPa.

Formula

kPa = torr × 0.133322

Worked Examples

760 torr = 101.325 kPa

Standard atmospheric pressure, expressed in the SI-derived unit of choice for modern documentation.

1 torr = 0.13332 kPa

The factor itself. A useful number to keep in mind when scanning a vacuum gauge.

23.8 torr = 3.173 kPa

The vapor pressure of water at 25 °C — worth tracking any time a gas is being collected over water.

100 torr = 13.332 kPa

A moderate rotary-evaporator vacuum, enough to bring most common solvents off at a reasonable bath temperature.

Frequently Asked Questions

How do I convert torr to kPa?
Multiply by 0.133322. So 760 torr is exactly 101.325 kPa, which is also one standard atmosphere.
How many kPa is 760 torr?
Exactly 101.325 kPa. That's the defined value of one standard atmosphere in SI-derived units, and it's the anchor point for every pressure conversion on the chart.
Which unit wins in modern chemistry publications?
Both still appear. Torr is traditional for vacuum work and vapor-pressure tables. Kilopascal is the IUPAC-aligned unit you'll see in newer textbooks, thermodynamic data compilations, and process-safety documentation.
What is the vapor pressure of water in torr and kPa?
At 25 °C, water's vapor pressure is about 23.8 torr, which is 3.17 kPa. At 100 °C it reaches 760 torr, or 101.325 kPa — the definition of the normal boiling point.