Convert Kilopascal to Millibar
Convert kPa to Millibar (mbar/hPa) for weather, aviation, and atmospheric work using the exact 10:1 factor.
How to Convert Kilopascal to Millibar
To convert Kilopascal to Millibar, multiply kPa by 10 because 1 kPa = 10 mbar.
Conversion Formula:
value * 10Understanding the Conversion
Kilopascal to Millibar is frequently used in meteorology and aviation, where mbar (or hPa) is the standard display unit. Since 1 kPa equals 10 mbar, you multiply by 10. For example, standard atmosphere 101.325 kPa becomes 1,013.25 mbar. This keeps weather values near 1,000, which is easy to interpret.
Use this conversion to publish forecasts, altimeter settings, or atmospheric research results. It is exact and reversible—divide mbar by 10 to return to kPa.
Conversion Examples
Example: Convert 101.325 kPa to mbar
- Step 1: 101.325 × 10 = 1,013.25.
- Step 2: Result is 1,013.25 mbar.
- Step 3: Matches sea-level reference.
101.325 kPa = 1,013.25 mbar
Standard atmosphere.
Example: Convert 50 kPa to mbar
- Step 1: 50 × 10 = 500.
- Step 2: Result is 500 mbar.
- Step 3: Mid-atmosphere range.
50 kPa = 500 mbar
Higher altitude equivalent.
Example: Convert 2.5 kPa to mbar
- Step 1: 2.5 × 10 = 25.
- Step 2: Result is 25 mbar.
- Step 3: Small differential example.
2.5 kPa = 25 mbar
Useful for small building pressure differentials.
Conversion Formula
Millibar is one-tenth of a kilopascal. Multiplying by 10 scales kPa into the millibar/hPa range.
Conversion Chart
| Kilopascal | Millibar |
|---|---|
| 2.5 | 25 |
| 5 | 50 |
| 10 | 100 |
| 20 | 200 |
| 50 | 500 |
| 75 | 750 |
| 100 | 1000 |
| 101.325 | 1013.25 |
| 150 | 1500 |
| 200 | 2000 |
Quick Conversion Tip
Just add one zero: 50 kPa → 500 mbar.
Unit Definitions
Kilopascal (kPa)
Metric pressure unit.
1 kPa = 10 mbar = 0.01 bar = 0.145 psi.
Millibar (mbar)
Common atmospheric unit, numerically equal to hPa.
mbar to kPa divide by 10; mbar to Pa multiply by 100; mbar to bar divide by 1,000.
Common Use Cases
- Weather reporting: convert kPa sensor outputs to mbar/hPa.
- Aviation: align kPa data to mbar altimeter settings.
- Research: publish atmospheric results in mbar.
- Building science: show small differentials in mbar.
- Education: teach kPa-to-mbar scaling.
Frequently Asked Questions
Are mbar and hPa the same?
Yes, 1 mbar = 1 hPa = 100 Pa.
Why use mbar for weather?
Values hover around 1,000 mbar, making changes easy to spot.
How to go back to kPa?
Divide mbar by 10 to return to kPa.