Convert millimeters of mercury to kilopascals instantly: 1 millimeter of mercury = 0.1333223874 kPa. Type a value to see the result with the formula, swap direction with one tap, or pick any other pressure units from the dropdowns. Free tool with formula and table, no sign-up.
What does this tool do?
The mmhg to kpa converter is a fast, no-sign-up converter for pressure units from psi to bar, kPa and mmHg. Enter any number in the Millimeter of mercury field and the equivalent in kilopascals appears immediately, together with the conversion formula for transparency. You can reverse the conversion with the swap control, choose any of the 7 pressure units from the dropdowns, and copy the result in one tap. Everything runs in your browser, so it works on slow connections and never sends your numbers anywhere.
Keep it bookmarked or on your home screen — utilities prove their worth through repetition, and the one you can open in two taps is the one you will actually use when the need strikes.
How do I use this tool?
The tool is ready the moment the page opens — no setup, no account. The steps below cover everything it does.
- Type the value into the “Millimeter of mercury” field.
- Read the converted value in kilopascals — the formula used is shown underneath.
- Tap “Copy result” to copy the answer to your clipboard.
- Use the swap button (⇄) to reverse the conversion direction.
- Pick any other pressure units from the “From” and “To” dropdowns.
mmHg to kPa formula
kilopascals = millimeters of mercury × 0.133322387
Example: 5 mmHg = 0.666612 kPa.
Reverse: 1 kPa = 7.5006158 mmHg.
Timing and randomness use the browser’s high-resolution clocks and cryptographic random source — the best available in a web page, accurate far beyond what everyday uses need. Display rounding is the only approximation.
mmHg to kPa conversion table
| Millimeter of mercury (mmHg) | Kilopascal (kPa) |
|---|---|
| 1 | 0.133322 |
| 2 | 0.266645 |
| 3 | 0.399967 |
| 4 | 0.53329 |
| 5 | 0.666612 |
| 6 | 0.799934 |
| 7 | 0.933257 |
| 8 | 1.06658 |
| 9 | 1.1999 |
| 10 | 1.33322 |
| 11 | 1.46655 |
| 12 | 1.59987 |
| 15 | 1.99984 |
| 20 | 2.66645 |
| 25 | 3.33306 |
| 30 | 3.99967 |
| 40 | 5.3329 |
| 50 | 6.66612 |
| 60 | 7.99934 |
| 70 | 9.33257 |
| 75 | 9.99918 |
| 80 | 10.6658 |
| 90 | 11.999 |
| 100 | 13.3322 |
| 150 | 19.9984 |
| 200 | 26.6645 |
| 250 | 33.3306 |
| 500 | 66.6612 |
| 1,000 | 133.322 |
What are these units?
Millimeter of mercury (mmHg): Used for blood pressure and vacuum measurements.
Kilopascal (kPa): 1,000 pascals. Used for tyre pressure in many countries.
Use cases in Pakistan
Tyre pressure in psi is the most common pressure conversion in Pakistan — every petrol pump air station and puncture shop uses it. Doctors record blood pressure in mmHg, workshop air compressors and paint sprayers are rated in bar or psi, and gas engineers work in kPa. Converting between these units matters for safety as well as convenience, from correctly inflated tyres on the motorway to properly rated equipment.
These are the tools people recommend to each other on WhatsApp — simple, free, no install — because they solve the small problems everyone hits: timing something, picking fairly, testing a device. Bookmark the ones you use; they age well.
Limitations
Factors are exact definitions. Real gauges have calibration error, and tyre pressure changes with temperature — always measure tyres cold. For medical or industrial safety decisions, use calibrated instruments and professional guidance, not a unit conversion.
Convenience tools are not certified instruments: fine for everyday purposes, but do not stake safety, money or legal outcomes on a browser utility. Know which category your use falls into.
Frequently asked questions
How many kilopascals are in a millimeter of mercury?
There are 0.13332239 kilopascals in one millimeter of mercury.
How do I convert millimeters of mercury to kilopascals?
kilopascals = millimeters of mercury × 0.133322387. Example: 5 mmHg = 0.666612 kPa.
How many kilopascals are in one millimeter of mercury?
Exactly 0.1333223874 kPa. Both units have exact international definitions, so this factor is not rounded — any rounding you see is only in how many decimals are displayed.
How do I convert kilopascals back to millimeters of mercury?
Tap the swap button (⇄) above the result — the From and To units exchange places and the value converts back using the exact inverse factor.
Can I convert between other pressure units?
Yes. The From and To dropdowns list all 7 pressure units this converter knows — pick any pair, for example Millimeter of mercury to pascal or bar to kilopascal.
How accurate is the result?
It uses the exact defined values of both units and displays up to 10 significant figures — far more precision than any ruler, scale or bill needs. The conversion itself introduces no error; only the displayed decimals are rounded.
Updated October 2026 · Built and tested by Sharjeel Tahir · How our tools are tested