PSI to Bar Converter: kPa, atm, inHg, mmHg & Torr

Type a pressure in any unit and see it in psi, bar, kPa, atm, inHg, mmHg, Torr and more, with the exact factor.

Which pressure unit is used where

psi: US tires (30–35 psi on most cars), air compressors, hydraulics.
bar: European tire gauges, scuba tanks (200–300 bar), espresso machines (9 bar).
kPa: the SI unit you see on tire placards next to psi; 1 bar = 100 kPa.
inHg: barometers and aircraft altimeters (29.92 inHg = 1 standard atmosphere). mmHg: blood pressure. Torr: vacuum pumps.
m of water (mH₂O): pump head; every 10 m of water column is about 1 bar. kgf/cm²: older gauges, nearly equal to 1 bar.

1 psi = 6,894.757 Pa = 0.06894757 bar 1 bar = 14.50377 psi 1 atm = 101,325 Pa (exact) = 1.01325 bar = 14.6959 psi 1 mmHg = 133.322 Pa 1 Torr = 1/760 atm = 133.3224 Pa 1 mH₂O = 9,806.65 Pa 1 kgf/cm² = 98,066.5 Pa = 0.980665 bar

psi to bar conversion chart

psi	bar	kPa	kgf/cm²
14.7 psi	1.014	101.4	1.034
25 psi	1.724	172.4	1.758
30 psi	2.068	206.8	2.109
32 psi	2.206	220.6	2.25
35 psi	2.413	241.3	2.461
40 psi	2.758	275.8	2.812
50 psi	3.447	344.7	3.515
90 psi	6.205	620.5	6.328
100 psi	6.895	689.5	7.031
120 psi	8.274	827.4	8.437
150 psi	10.34	1,034	10.55

Worked example

A European car door sticker says 2.4 bar. In psi: 2.4 × 14.5038 = 34.8 psi, so inflate to 35 psi. Gauge pressure (what tire gauges show) is measured above atmospheric pressure; absolute pressure adds about 14.7 psi (1.013 bar).

psi to bar conversion chart (1–150 psi)

Pressure in psi converted to bar, kPa, kgf/cm² and atm, from 1 to 150 psi — tires, air compressors, water pressure and pressure washers.

Show full table

psi	bar	kPa	kgf/cm²	atm
1 psi	0.0689476	6.89476	0.070307	0.068046
2 psi	0.137895	13.7895	0.140614	0.136092
3 psi	0.206843	20.6843	0.210921	0.204138
4 psi	0.27579	27.579	0.281228	0.272184
5 psi	0.344738	34.4738	0.351535	0.34023
6 psi	0.413685	41.3685	0.421842	0.408276
7 psi	0.482633	48.2633	0.492149	0.476322
8 psi	0.551581	55.1581	0.562456	0.544368
9 psi	0.620528	62.0528	0.632763	0.612414
10 psi	0.689476	68.9476	0.70307	0.68046
12 psi	0.827371	82.7371	0.843683	0.816552
14 psi	0.965266	96.5266	0.984297	0.952643
16 psi	1.10316	110.316	1.12491	1.08874
18 psi	1.24106	124.106	1.26553	1.22483
20 psi	1.37895	137.895	1.40614	1.36092
22 psi	1.51685	151.685	1.54675	1.49701
24 psi	1.65474	165.474	1.68737	1.6331
26 psi	1.79264	179.264	1.82798	1.7692
28 psi	1.93053	193.053	1.96859	1.90529
30 psi	2.06843	206.843	2.10921	2.04138
35 psi	2.41317	241.317	2.46074	2.38161
40 psi	2.7579	275.79	2.81228	2.72184
45 psi	3.10264	310.264	3.16381	3.06207
50 psi	3.44738	344.738	3.51535	3.4023
55 psi	3.79212	379.212	3.86688	3.74253
60 psi	4.13685	413.685	4.21842	4.08276
65 psi	4.48159	448.159	4.56995	4.42299
70 psi	4.82633	482.633	4.92149	4.76322
75 psi	5.17107	517.107	5.27302	5.10345
80 psi	5.51581	551.581	5.62456	5.44368
85 psi	5.86054	586.054	5.97609	5.78391
90 psi	6.20528	620.528	6.32763	6.12414
95 psi	6.55002	655.002	6.67916	6.46437
100 psi	6.89476	689.476	7.0307	6.8046
105 psi	7.2395	723.95	7.38223	7.14483
110 psi	7.58423	758.423	7.73377	7.48506
115 psi	7.92897	792.897	8.0853	7.82529
120 psi	8.27371	827.371	8.43683	8.16552
125 psi	8.61845	861.845	8.78837	8.50575
130 psi	8.96318	896.318	9.1399	8.84598
135 psi	9.30792	930.792	9.49144	9.18621
140 psi	9.65266	965.266	9.84297	9.52643
145 psi	9.9974	999.74	10.1945	9.86666
150 psi	10.3421	1,034.21	10.546	10.2069

Exact factors: 1 psi = 6,894.757 Pa, 1 bar = 100,000 Pa (= 14.5038 psi), 1 atm = 101,325 Pa, 1 kgf/cm² = 98,066.5 Pa, 1 mH₂O = 9,806.65 Pa. Gauge and absolute pressure convert the same way; values rounded to 6 significant digits, exactly as the converter shows them.

bar to psi conversion chart (0.1–300 bar)

Pressure in bar converted to psi, kPa, MPa and meters of water column.

Show full table

bar	psi	kPa	MPa	mH₂O
0.1 bar	1.45038	10	0.01	1.01972
0.2 bar	2.90075	20	0.02	2.03943
0.3 bar	4.35113	30	0.03	3.05915
0.5 bar	7.25189	50	0.05	5.09858
0.8 bar	11.603	80	0.08	8.15773
1 bar	14.5038	100	0.1	10.1972
1.5 bar	21.7557	150	0.15	15.2957
2 bar	29.0075	200	0.2	20.3943
2.5 bar	36.2594	250	0.25	25.4929
3 bar	43.5113	300	0.3	30.5915
3.5 bar	50.7632	350	0.35	35.6901
4 bar	58.0151	400	0.4	40.7886
4.5 bar	65.267	450	0.45	45.8872
5 bar	72.5189	500	0.5	50.9858
5.5 bar	79.7708	550	0.55	56.0844
6 bar	87.0226	600	0.6	61.183
6.5 bar	94.2745	650	0.65	66.2816
7 bar	101.526	700	0.7	71.3801
7.5 bar	108.778	750	0.75	76.4787
8 bar	116.03	800	0.8	81.5773
8.5 bar	123.282	850	0.85	86.6759
9 bar	130.534	900	0.9	91.7745
9.5 bar	137.786	950	0.95	96.873
10 bar	145.038	1,000	1	101.972
11 bar	159.542	1,100	1.1	112.169
12 bar	174.045	1,200	1.2	122.366
13 bar	188.549	1,300	1.3	132.563
14 bar	203.053	1,400	1.4	142.76
15 bar	217.557	1,500	1.5	152.957
16 bar	232.06	1,600	1.6	163.155
18 bar	261.068	1,800	1.8	183.549
20 bar	290.075	2,000	2	203.943
25 bar	362.594	2,500	2.5	254.929
30 bar	435.113	3,000	3	305.915
40 bar	580.151	4,000	4	407.886
50 bar	725.189	5,000	5	509.858
100 bar	1,450.38	10,000	10	1,019.72
200 bar	2,900.75	20,000	20	2,039.43
300 bar	4,351.13	30,000	30	3,059.15

Frequently asked questions

How many psi is 1 bar?

1 bar = 14.504 psi. To convert bar to psi, multiply by 14.5038; for psi to bar, divide by it (or multiply by 0.0689476).

What is 32 psi in bar?

32 psi = 2.206 bar = 220.6 kPa, a typical car tire pressure.

What is the difference between psi and psig?

psig is gauge pressure (above atmosphere), what a tire gauge reads. psia is absolute pressure, about 14.7 psi higher at sea level.

Pressure Converter: psi to bar, kPa, atm and inHg

Quick answers

Which pressure unit is used where

psi to bar conversion chart

Worked example

psi to bar conversion chart (1–150 psi)

bar to psi conversion chart (0.1–300 bar)

Frequently asked questions