Convert Kilopascal to Megapascal
1 kilopascal = 0.001 megapascal (MPa). For example, 10 kilopascal = 0.01 megapascal and 100 kilopascal = 0.1 megapascal. Type any value below to convert kilopascal to megapascal both ways — it runs entirely in your browser.
Quick answer: Kilopascal to Megapascal
1 Kilopascal = 0.001 Megapascal (kPa → MPa). To convert kilopascal to megapascal, multiply by 0.001. To convert megapascal to kilopascal, multiply by 1,000. 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 kilopascal-to-megapascal questions.
How to convert Kilopascal to Megapascal
To convert kilopascal to megapascal, multiply the number of kilopascal by the conversion factor 0.001, because 1 kPa = 0.001 MPa. The conversion is linear, so the same factor works for any value — whole numbers, decimals or fractions. For the reverse direction, 1 MPa = 1,000 kPa, so you divide by 0.001 (or multiply by 1,000) to turn megapascal back into kilopascal.
MPa = kPa × 0.001 ·
kPa = MPa × 1,000
- Write down the value you want to convert, in kilopascal.
- Multiply it by 0.001.
- The result is the same area/length/quantity expressed in megapascal.
Kilopascal to Megapascal — worked examples
Each row shows the exact arithmetic so you can follow the conversion step by step. For example, 5 kilopascal is 0.005 megapascal because 5 kPa × 0.001 = 0.005 MPa.
| Kilopascal | Calculation | Megapascal |
|---|---|---|
| 1 kPa | 1 kPa × 0.001 = 0.001 MPa | 0.001 MPa |
| 2 kPa | 2 kPa × 0.001 = 0.002 MPa | 0.002 MPa |
| 3 kPa | 3 kPa × 0.001 = 0.003 MPa | 0.003 MPa |
| 5 kPa | 5 kPa × 0.001 = 0.005 MPa | 0.005 MPa |
| 7 kPa | 7 kPa × 0.001 = 0.007 MPa | 0.007 MPa |
| 10 kPa | 10 kPa × 0.001 = 0.01 MPa | 0.01 MPa |
| 12 kPa | 12 kPa × 0.001 = 0.012 MPa | 0.012 MPa |
| 15 kPa | 15 kPa × 0.001 = 0.015 MPa | 0.015 MPa |
| 20 kPa | 20 kPa × 0.001 = 0.02 MPa | 0.02 MPa |
| 25 kPa | 25 kPa × 0.001 = 0.025 MPa | 0.025 MPa |
| 50 kPa | 50 kPa × 0.001 = 0.05 MPa | 0.05 MPa |
| 100 kPa | 100 kPa × 0.001 = 0.1 MPa | 0.1 MPa |
Common Kilopascal to Megapascal conversions
These are the kilopascal-to-megapascal values people look up most often. Every figure is computed from the exact factor, so you can rely on them for quick reference:
- 1 kilopascal = 0.001 megapascal
- 2 kilopascal = 0.002 megapascal
- 2.5 kilopascal = 0.0025 megapascal
- 3 kilopascal = 0.003 megapascal
- 4 kilopascal = 0.004 megapascal
- 5 kilopascal = 0.005 megapascal
- 6 kilopascal = 0.006 megapascal
- 7 kilopascal = 0.007 megapascal
- 8 kilopascal = 0.008 megapascal
- 9 kilopascal = 0.009 megapascal
- 10 kilopascal = 0.01 megapascal
- 12 kilopascal = 0.012 megapascal
- 15 kilopascal = 0.015 megapascal
- 20 kilopascal = 0.02 megapascal
- 25 kilopascal = 0.025 megapascal
- 30 kilopascal = 0.03 megapascal
- 50 kilopascal = 0.05 megapascal
- 75 kilopascal = 0.075 megapascal
- 100 kilopascal = 0.1 megapascal
- 200 kilopascal = 0.2 megapascal
- 500 kilopascal = 0.5 megapascal
- 1000 kilopascal = 1 megapascal
Kilopascal to Megapascal conversion chart (both directions)
The chart below converts kilopascal to megapascal and megapascal to kilopascal side by side, so it works whichever way you need. 1 kilopascal = 0.001 megapascal, and 1 megapascal = 1,000 kilopascal.
| Kilopascal → Megapascal | Megapascal → Kilopascal |
|---|---|
| 0.25 kPa = 0.00025 MPa | 0.25 MPa = 250 kPa |
| 0.5 kPa = 0.0005 MPa | 0.5 MPa = 500 kPa |
| 1 kPa = 0.001 MPa | 1 MPa = 1,000 kPa |
| 2 kPa = 0.002 MPa | 2 MPa = 2,000 kPa |
| 3 kPa = 0.003 MPa | 3 MPa = 3,000 kPa |
| 4 kPa = 0.004 MPa | 4 MPa = 4,000 kPa |
| 5 kPa = 0.005 MPa | 5 MPa = 5,000 kPa |
| 6 kPa = 0.006 MPa | 6 MPa = 6,000 kPa |
| 7 kPa = 0.007 MPa | 7 MPa = 7,000 kPa |
| 8 kPa = 0.008 MPa | 8 MPa = 8,000 kPa |
| 9 kPa = 0.009 MPa | 9 MPa = 9,000 kPa |
| 10 kPa = 0.01 MPa | 10 MPa = 10,000 kPa |
| 12 kPa = 0.012 MPa | 12 MPa = 12,000 kPa |
| 15 kPa = 0.015 MPa | 15 MPa = 15,000 kPa |
| 20 kPa = 0.02 MPa | 20 MPa = 20,000 kPa |
| 25 kPa = 0.025 MPa | 25 MPa = 25,000 kPa |
| 30 kPa = 0.03 MPa | 30 MPa = 30,000 kPa |
| 40 kPa = 0.04 MPa | 40 MPa = 40,000 kPa |
| 50 kPa = 0.05 MPa | 50 MPa = 50,000 kPa |
| 75 kPa = 0.075 MPa | 75 MPa = 75,000 kPa |
| 100 kPa = 0.1 MPa | 100 MPa = 100,000 kPa |
| 150 kPa = 0.15 MPa | 150 MPa = 150,000 kPa |
| 200 kPa = 0.2 MPa | 200 MPa = 200,000 kPa |
| 250 kPa = 0.25 MPa | 250 MPa = 250,000 kPa |
| 500 kPa = 0.5 MPa | 500 MPa = 500,000 kPa |
| 1000 kPa = 1 MPa | 1000 MPa = 1,000,000 kPa |
Kilopascal vs Megapascal: which is bigger?
A megapascal is the larger unit: one megapascal equals 1,000 kilopascals. Put another way, you need 1,000 kilopascals to make a single megapascal.
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.
What is a Megapascal? History, origin and usage
The megapascal became the standard way to state material strength as structural engineering codes moved to SI. It replaced a patchwork of older units — kilograms-force per square centimetre in Europe and Asia, pounds per square inch in the United States and Britain — that made international standards hard to compare.
Megapascals are used wherever pressures or stresses are large: concrete and steel strength, hydraulic systems, injection moulding, and the pressure ratings of pipes and pressure vessels. Ordinary structural concrete is commonly specified somewhere around 20 to 40 MPa.
One megapascal is a million pascals, and also exactly 10 bar, which makes the two easy to swap in your head. One megapascal is also the same as one newton per square millimetre — a coincidence engineers use constantly, because it lets a stress in MPa be read straight off a force in newtons and an area in square millimetres.
Convert 1 Kilopascal to other units
It can help to see a kilopascal next to the other units it is commonly compared with. 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 |
Convert 1 Megapascal to other units
One megapascal (MPa) is equal to:
| 1 Megapascal equals | Unit |
|---|---|
| 1,000,000 Pa | Pascal |
| 10,000 hPa | Hectopascal |
| 1,000 kPa | Kilopascal |
| 10,000 mbar | Millibar |
| 10 bar | Bar |
| 9.869233 atm | Standard atmosphere |
| 7,500.617 Torr | Torr |
| 7,500.616 mmHg | Millimetre of mercury |
| 295.2998 inHg | Inch of mercury |
| 101,971.6 mmH₂O | Millimetre of water |
| 4,014.631 inH₂O | Inch of water |
| 145.0377 psi | Pound per square inch |
| 10.19716 kgf/cm² | Kilogram-force per square centimetre |
Tips for converting Kilopascal to Megapascal
- To go from kilopascal to megapascal, multiply by 0.001; to go back, divide by 0.001 (or multiply by 1,000).
- For a quick mental estimate, remember that 1 kilopascal ≈ 0.001 megapascal, so 10 kilopascal ≈ 0.01 megapascal.
- 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 Kilopascal to Megapascal converter
Type a number into the Kilopascal field and the equivalent in Megapascal 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 Megapascal field to convert the other way (megapascal to kilopascal). 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 kPa = 0.001 MPa), 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 kilopascal-to-megapascal 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 megapascal are in 1 kilopascal?
- 1 kilopascal = 0.001 megapascal (MPa). To convert any number of kilopascal to megapascal, multiply by 0.001.
- How do I convert kilopascal to megapascal?
- Multiply the number of kilopascal by 0.001. For example, 10 kilopascal = 10 × 0.001 = 0.01 megapascal, and 25 kilopascal = 0.025 megapascal.
- How many kilopascal are in 1 megapascal?
- 1 megapascal = 1,000 kilopascal. So to convert megapascal back to kilopascal, multiply by 1,000.
- What is the formula to convert kilopascal to megapascal?
- megapascal = kilopascal × 0.001. The reverse formula is kilopascal = megapascal × 1,000.
- How much is 100 kilopascal in megapascal?
- 100 kilopascal = 0.1 megapascal. (And 1000 kilopascal = 1 megapascal.)
- Which is bigger, a kilopascal or a megapascal?
- A megapascal is larger: 1 megapascal = 1,000 kilopascal.
- Is this kilopascal to megapascal converter accurate?
- Yes — every value is computed from the exact 0.001 MPa per kPa factor (not rounded look-up tables), and the factors are re-verified automatically on every update.
- Can I convert megapascal to kilopascal too?
- Yes. The converter works both ways — enter a value in either field. 1 megapascal = 1,000 kilopascal.