Convert Torr to Kilopascal
1 torr = 0.1333224 kilopascal (kPa). For example, 10 torr = 1.333224 kilopascal and 100 torr = 13.33224 kilopascal. Type any value below to convert torr to kilopascal both ways — it runs entirely in your browser.
Quick answer: Torr to Kilopascal
1 Torr = 0.1333224 Kilopascal (Torr → kPa). To convert torr to kilopascal, multiply by 0.1333224. To convert kilopascal to torr, multiply by 7.500617. The converter at the top does this instantly and both ways; the sections below give the formula, worked examples, a full conversion chart and answers to the most common torr-to-kilopascal questions.
How to convert Torr to Kilopascal
To convert torr to kilopascal, multiply the number of torr by the conversion factor 0.1333224, because 1 Torr = 0.1333224 kPa. The conversion is linear, so the same factor works for any value — whole numbers, decimals or fractions. For the reverse direction, 1 kPa = 7.500617 Torr, so you divide by 0.1333224 (or multiply by 7.500617) to turn kilopascal back into torr.
kPa = Torr × 0.1333224 ·
Torr = kPa × 7.500617
- Write down the value you want to convert, in torr.
- Multiply it by 0.1333224.
- The result is the same area/length/quantity expressed in kilopascal.
Torr to Kilopascal — worked examples
Each row shows the exact arithmetic so you can follow the conversion step by step. For example, 5 torr is 0.6666118 kilopascal because 5 Torr × 0.1333224 = 0.6666118 kPa.
| Torr | Calculation | Kilopascal |
|---|---|---|
| 1 Torr | 1 Torr × 0.1333224 = 0.1333224 kPa | 0.1333224 kPa |
| 2 Torr | 2 Torr × 0.1333224 = 0.2666447 kPa | 0.2666447 kPa |
| 3 Torr | 3 Torr × 0.1333224 = 0.3999671 kPa | 0.3999671 kPa |
| 5 Torr | 5 Torr × 0.1333224 = 0.6666118 kPa | 0.6666118 kPa |
| 7 Torr | 7 Torr × 0.1333224 = 0.9332566 kPa | 0.9332566 kPa |
| 10 Torr | 10 Torr × 0.1333224 = 1.333224 kPa | 1.333224 kPa |
| 12 Torr | 12 Torr × 0.1333224 = 1.599868 kPa | 1.599868 kPa |
| 15 Torr | 15 Torr × 0.1333224 = 1.999836 kPa | 1.999836 kPa |
| 20 Torr | 20 Torr × 0.1333224 = 2.666447 kPa | 2.666447 kPa |
| 25 Torr | 25 Torr × 0.1333224 = 3.333059 kPa | 3.333059 kPa |
| 50 Torr | 50 Torr × 0.1333224 = 6.666118 kPa | 6.666118 kPa |
| 100 Torr | 100 Torr × 0.1333224 = 13.33224 kPa | 13.33224 kPa |
Common Torr to Kilopascal conversions
These are the torr-to-kilopascal values people look up most often. Every figure is computed from the exact factor, so you can rely on them for quick reference:
- 1 torr = 0.1333224 kilopascal
- 2 torr = 0.2666447 kilopascal
- 2.5 torr = 0.3333059 kilopascal
- 3 torr = 0.3999671 kilopascal
- 4 torr = 0.5332895 kilopascal
- 5 torr = 0.6666118 kilopascal
- 6 torr = 0.7999342 kilopascal
- 7 torr = 0.9332566 kilopascal
- 8 torr = 1.066579 kilopascal
- 9 torr = 1.199901 kilopascal
- 10 torr = 1.333224 kilopascal
- 12 torr = 1.599868 kilopascal
- 15 torr = 1.999836 kilopascal
- 20 torr = 2.666447 kilopascal
- 25 torr = 3.333059 kilopascal
- 30 torr = 3.999671 kilopascal
- 50 torr = 6.666118 kilopascal
- 75 torr = 9.999178 kilopascal
- 100 torr = 13.33224 kilopascal
- 200 torr = 26.66447 kilopascal
- 500 torr = 66.66118 kilopascal
- 1000 torr = 133.3224 kilopascal
Torr to Kilopascal conversion chart (both directions)
The chart below converts torr to kilopascal and kilopascal to torr side by side, so it works whichever way you need. 1 torr = 0.1333224 kilopascal, and 1 kilopascal = 7.500617 torr.
| Torr → Kilopascal | Kilopascal → Torr |
|---|---|
| 0.25 Torr = 0.03333059 kPa | 0.25 kPa = 1.875154 Torr |
| 0.5 Torr = 0.06666118 kPa | 0.5 kPa = 3.750308 Torr |
| 1 Torr = 0.1333224 kPa | 1 kPa = 7.500617 Torr |
| 2 Torr = 0.2666447 kPa | 2 kPa = 15.00123 Torr |
| 3 Torr = 0.3999671 kPa | 3 kPa = 22.50185 Torr |
| 4 Torr = 0.5332895 kPa | 4 kPa = 30.00247 Torr |
| 5 Torr = 0.6666118 kPa | 5 kPa = 37.50308 Torr |
| 6 Torr = 0.7999342 kPa | 6 kPa = 45.0037 Torr |
| 7 Torr = 0.9332566 kPa | 7 kPa = 52.50432 Torr |
| 8 Torr = 1.066579 kPa | 8 kPa = 60.00493 Torr |
| 9 Torr = 1.199901 kPa | 9 kPa = 67.50555 Torr |
| 10 Torr = 1.333224 kPa | 10 kPa = 75.00617 Torr |
| 12 Torr = 1.599868 kPa | 12 kPa = 90.0074 Torr |
| 15 Torr = 1.999836 kPa | 15 kPa = 112.5093 Torr |
| 20 Torr = 2.666447 kPa | 20 kPa = 150.0123 Torr |
| 25 Torr = 3.333059 kPa | 25 kPa = 187.5154 Torr |
| 30 Torr = 3.999671 kPa | 30 kPa = 225.0185 Torr |
| 40 Torr = 5.332895 kPa | 40 kPa = 300.0247 Torr |
| 50 Torr = 6.666118 kPa | 50 kPa = 375.0308 Torr |
| 75 Torr = 9.999178 kPa | 75 kPa = 562.5463 Torr |
| 100 Torr = 13.33224 kPa | 100 kPa = 750.0617 Torr |
| 150 Torr = 19.99836 kPa | 150 kPa = 1,125.093 Torr |
| 200 Torr = 26.66447 kPa | 200 kPa = 1,500.123 Torr |
| 250 Torr = 33.33059 kPa | 250 kPa = 1,875.154 Torr |
| 500 Torr = 66.66118 kPa | 500 kPa = 3,750.308 Torr |
| 1000 Torr = 133.3224 kPa | 1000 kPa = 7,500.617 Torr |
Torr vs Kilopascal: which is bigger?
A kilopascal is the larger unit: one kilopascal equals 7.500617 torrs. Put another way, you need 7.500617 torrs to make a single kilopascal.
What is a Torr? History, origin and usage
The torr honours Evangelista Torricelli, who built the first mercury barometer in 1643 and correctly explained that the column was held up by the weight of the air outside. The unit was named in the 1940s, and was defined as exactly one 760th of a standard atmosphere so that it would be tied to a fixed number rather than to the behaviour of real mercury.
Torr is the working unit of vacuum technology — vacuum pumps, freeze dryers, electron microscopes, semiconductor process chambers and mass spectrometers are all specified in torr or its subdivisions.
Because it is defined as a 760th of an atmosphere, 760 torr is one atmosphere exactly, by construction. It is very nearly the same as a millimetre of mercury but not exactly: the two differ by about one part in seven million, a gap that matters only in precision metrology and is the reason careful documents never treat the two names as interchangeable.
What is a Kilopascal? History, origin and usage
The kilopascal came into general use as countries converted their engineering standards to SI through the 1970s and 1980s. Canada, Australia and much of Europe moved tyre-pressure labels and gas-cylinder markings to kPa in that period, which is why a car built for one market often carries a door sticker in kPa and one built for another carries the same number in psi or bar.
Kilopascals are the workaday metric pressure unit: tyre pressures, medical gas supplies, water systems, ventilation and most mechanical engineering specifications. A car tyre is typically inflated to somewhere around 200 to 250 kPa.
One kilopascal is 1,000 pascals, and 100 kilopascals is very nearly one atmosphere — which is a useful mental shortcut, though the exact figure is 101.325 kPa, not 100.
Convert 1 Torr to other units
It can help to see a torr next to the other units it is commonly compared with. One torr (Torr) is equal to:
| 1 Torr equals | Unit |
|---|---|
| 133.3224 Pa | Pascal |
| 1.333224 hPa | Hectopascal |
| 0.1333224 kPa | Kilopascal |
| 0.0001333224 MPa | Megapascal |
| 1.333224 mbar | Millibar |
| 0.001333224 bar | Bar |
| 0.001315789 atm | Standard atmosphere |
| 0.9999999 mmHg | Millimetre of mercury |
| 0.03937007 inHg | Inch of mercury |
| 13.5951 mmH₂O | Millimetre of water |
| 0.5352401 inH₂O | Inch of water |
| 0.01933677 psi | Pound per square inch |
| 0.00135951 kgf/cm² | Kilogram-force per square centimetre |
Convert 1 Kilopascal to other units
One kilopascal (kPa) is equal to:
| 1 Kilopascal equals | Unit |
|---|---|
| 1,000 Pa | Pascal |
| 10 hPa | Hectopascal |
| 0.001 MPa | Megapascal |
| 10 mbar | Millibar |
| 0.01 bar | Bar |
| 0.009869233 atm | Standard atmosphere |
| 7.500617 Torr | Torr |
| 7.500616 mmHg | Millimetre of mercury |
| 0.2952998 inHg | Inch of mercury |
| 101.9716 mmH₂O | Millimetre of water |
| 4.014631 inH₂O | Inch of water |
| 0.1450377 psi | Pound per square inch |
| 0.01019716 kgf/cm² | Kilogram-force per square centimetre |
Tips for converting Torr to Kilopascal
- To go from torr to kilopascal, multiply by 0.1333224; to go back, divide by 0.1333224 (or multiply by 7.500617).
- For a quick mental estimate, remember that 1 torr ≈ 0.1333224 kilopascal, so 10 torr ≈ 1.333224 kilopascal.
- The converter above keeps full precision; the tables round for readability, so use the tool for exact figures.
- Both fields update live as you type — change either side to convert in that direction.
How to use this Torr to Kilopascal converter
Type a number into the Torr field and the equivalent in Kilopascal appears instantly — there is no “convert” button to press and nothing is sent to a server, so it works offline once the page has loaded and is safe for any data. You can also type into the Kilopascal field to convert the other way (kilopascal to torr). Use the swap control to flip the two units, and copy the result with a single click. Because the calculation runs in your browser with full floating-point precision, the converter is more exact than the rounded figures shown in the reference chart above — use the chart for quick look-ups and the tool for precise work.
Accuracy and method
Every figure on this page — the formula, the worked examples, the conversion chart and the “convert to other units” tables — is computed from a single verified conversion factor (1 Torr = 0.1333224 kPa), never copied from a hand-typed lookup table that could drift. That factor is derived from each unit’s definition in terms of a common base unit, and an automated check re-verifies all of the site’s factors on every update, so the numbers here stay correct over time. This matters for torr-to-kilopascal conversions because a small rounding error in a published table compounds quickly at larger quantities; computing from the exact factor avoids that.
Sources
- BIPM — The International System of Units (SI Brochure) — the defining document for the SI, published by the International Bureau of Weights and Measures. It fixes the base unit that this conversion resolves to, which is why the factor here can be exact rather than approximate.
- NIST — Definitions of the SI base units — the US National Institute of Standards and Technology reference for the SI base units, used here as an independent cross-check on the base-unit definition.
Pressure factors here come from fixed definitions, anchored to the pascal: a bar is exactly 100,000 Pa, one atmosphere is exactly 101,325 Pa, a torr is exactly a 760th of an atmosphere, and psi is built from the exact pound and the exact inch. Two of them — psi and the torr — work out to decimals that repeat forever, so where a number is shown rounded it is marked, not quietly trimmed.
Frequently asked questions
- How many kilopascal are in 1 torr?
- 1 torr = 0.1333224 kilopascal (kPa). To convert any number of torr to kilopascal, multiply by 0.1333224.
- How do I convert torr to kilopascal?
- Multiply the number of torr by 0.1333224. For example, 10 torr = 10 × 0.1333224 = 1.333224 kilopascal, and 25 torr = 3.333059 kilopascal.
- How many torr are in 1 kilopascal?
- 1 kilopascal = 7.500617 torr. So to convert kilopascal back to torr, multiply by 7.500617.
- What is the formula to convert torr to kilopascal?
- kilopascal = torr × 0.1333224. The reverse formula is torr = kilopascal × 7.500617.
- How much is 100 torr in kilopascal?
- 100 torr = 13.33224 kilopascal. (And 1000 torr = 133.3224 kilopascal.)
- Which is bigger, a torr or a kilopascal?
- A kilopascal is larger: 1 kilopascal = 7.500617 torr.
- Is this torr to kilopascal converter accurate?
- Yes — every value is computed from the exact 0.1333224 kPa per Torr factor (not rounded look-up tables), and the factors are re-verified automatically on every update.
- Can I convert kilopascal to torr too?
- Yes. The converter works both ways — enter a value in either field. 1 kilopascal = 7.500617 torr.