Pressure converter

PSI, bar, pascals and atmospheres — including tyre pressure.

Value

From

Result

0.01 hectopascals

1 Pa = 0.01 hPa

Significant figures: 8

All pressure units

Unit	Value	Symbol
	1	Pa
	0.01	hPa
	0.001	kPa
	0.000001	MPa
	0.00001	bar
	0.01	mbar
	0.00014503774	psi
	0.0000098692327	atm
	0.0075006168	Torr
	0.0075006158	mmHg
	0.00029529983	inHg

pascals to hectopascals at a glance

Pa	hPa
1	0.01
2	0.02
3	0.03
4	0.04
5	0.05
10	0.1
25	0.25
50	0.5
100	1

Other pressure conversions

Pound per square inchs to bars Bars to pound per square inchs Pound per square inchs to kilopascals Atmospheres to pound per square inchs

How it works

Every unit in this dimension is defined as a ratio to one base unit — the pascal. Converting is therefore two multiplications: into the base unit, then out of it.

1 Pa = 0.01 hPa

Rounding

Results are rounded to 8 significant figures, adjustable with the slider above. Exact factors are used internally, so chaining conversions does not accumulate error.

Sources

Conversion factors follow NIST Special Publication 811 (Guide for the Use of the International System of Units) and the BIPM SI Brochure, 9th edition. Every factor is checked by an automated round-trip test on each build.