This converter turns bar into inches of mercury instantly, using the exact factor 1 bar = 29.52998016 inches of mercury. Type any number and the result updates as you go — nothing is sent to a server, so the arithmetic happens entirely in your browser.
Almost exactly atmospheric pressure; standard in European industry and diving. US aviation and weather altimeter setting unit.
Because the relationship is a simple proportion, one multiplication does the whole job. The table further down gives pre-computed values for the amounts people look up most often, and the result panel also reports the reverse conversion so you can check the figure both ways.
The formula
bar- The amount you are converting, measured in bar
29.52998016- The exact number of inches of mercury in one bar
inches of mercury- The converted result
How it works, step by step
- Enter the number of bar you want to convert.
- The value is multiplied by 29.52998016, the exact conversion factor.
- The result is displayed in inches of mercury, rounded for readability.
- The unrounded value and the reverse conversion appear underneath so you can verify it.
Worked examples
Converting 5 bar
Multiply 5 by 29.52998. That gives 147.6499 inches of mercury. A quick sanity check: one bar is larger than one inch of mercury, so the number should get bigger — and it does.
Converting 72 bar
72 × 29.52998 = 2,126.16 inches of mercury. Working backwards, 2,126.16 ÷ 29.52998 returns 72 bar, which confirms the factor is applied the right way round.
How to read your score
Frequently asked questions
How many inches of mercury are in one bar?
Exactly 29.52998016. Every conversion on this page is that single number multiplied by your input, so the result carries no rounding error beyond what is shown.
What is the formula to convert bar to inches of mercury?
Inches Of Mercury = bar × 29.52998016. To reverse it, divide instead: bar = inches of mercury ÷ 29.52998016, which is the same as multiplying by 0.03386389.
Is the bar bigger than the inch of mercury?
Yes. One bar equals 29.53 inches of mercury, so it is the larger unit.
Why does my answer differ slightly from other bar to inhg converters?
Most differences come from rounding the factor too early. This tool keeps full double precision through the calculation and only rounds at the final display step, and it also shows the unrounded value so you can see exactly where any difference appears.
What is a bar?
Almost exactly atmospheric pressure; standard in European industry and diving.
What is a inch of mercury?
US aviation and weather altimeter setting unit.
Bar to inches of mercury reference table
| Bar | Inches Of Mercury |
|---|---|
| 0.5 bar | 14.765 inHg |
| 1 bar | 29.53 inHg |
| 2 bar | 59.06 inHg |
| 3 bar | 88.5899 inHg |
| 5 bar | 147.6499 inHg |
| 10 bar | 295.2998 inHg |
| 15 bar | 442.9497 inHg |
| 20 bar | 590.5996 inHg |
| 25 bar | 738.2495 inHg |
| 50 bar | 1,476.5 inHg |
| 75 bar | 2,214.75 inHg |
| 100 bar | 2,953 inHg |
| 250 bar | 7,382.5 inHg |
| 500 bar | 14,764.99 inHg |
| 1000 bar | 29,529.98 inHg |
Exact factor: 1 bar = 29.52998016 inches of mercury. Values rounded for display.