Air ideal-gas properties table

Name: Air ideal-gas properties table
Creator: Simuveliq

This table gives h, u, s°, P_r and v_r of air as an ideal gas as a function of temperature. Above you can use it interactively (switch units with SI/US, pick the pressure or go to the calculator for any point with step-by-step interpolation). Reference state: h = 0 at 0 K and s° = 0 at 0 °C and 1 atm.

The table as text, SI units

T [K]	h [kJ/kg]	P_r	u [kJ/kg]	v_r	s° [kJ/kg·K]
200	200.69	0.33656	143.28	594.25	−0.31259
210	210.72	0.39908	150.44	526.21	−0.26368
220	220.74	0.46948	157.59	468.60	−0.21704
230	230.77	0.54834	164.75	419.45	−0.17248
240	240.80	0.63624	171.91	377.22	−0.12980
250	250.83	0.73378	179.06	340.70	−0.088856
260	260.86	0.84157	186.23	308.94	−0.049511
270	270.89	0.96026	193.39	281.18	−0.011641
280	280.93	1.0905	200.56	256.77	0.024863
290	290.97	1.2329	207.73	235.22	0.060098
300	301.02	1.3882	214.90	216.11	0.094154
310	311.07	1.5571	222.08	199.09	0.12711
320	321.12	1.7403	229.27	183.88	0.15904
330	331.19	1.9385	236.46	170.24	0.19000
340	341.25	2.1525	243.66	157.96	0.22006
350	351.33	2.3830	250.86	146.87	0.24927
360	361.42	2.6310	258.08	136.83	0.27768
370	371.51	2.8971	265.30	127.71	0.30534
380	381.62	3.1822	272.54	119.41	0.33228
390	391.73	3.4873	279.78	111.83	0.35856
400	401.86	3.8131	287.04	104.90	0.38420
410	412.00	4.1606	294.31	98.543	0.40924
420	422.15	4.5308	301.59	92.699	0.43370
430	432.32	4.9246	308.89	87.317	0.45763
440	442.50	5.3430	316.20	82.351	0.48103
450	452.70	5.7870	323.52	77.760	0.50395
460	462.91	6.2577	330.87	73.509	0.52639
470	473.14	6.7562	338.23	69.566	0.54840
480	483.39	7.2836	345.60	65.902	0.56997
490	493.65	7.8409	353.00	62.492	0.59114
500	503.94	8.4295	360.41	59.315	0.61191
510	514.24	9.0505	367.85	56.350	0.63232
520	524.56	9.7051	375.30	53.580	0.65236
530	534.91	10.395	382.77	50.988	0.67207
540	545.27	11.120	390.27	48.559	0.69144
550	555.66	11.884	397.78	46.282	0.71050
560	566.07	12.686	405.32	44.143	0.72925
570	576.50	13.529	412.88	42.133	0.74771
580	586.95	14.413	420.46	40.241	0.76589
590	597.42	15.341	428.06	38.460	0.78379
600	607.92	16.313	435.69	36.780	0.80143
610	618.44	17.332	443.34	35.195	0.81882
620	628.98	18.399	451.01	33.698	0.83597
630	639.55	19.515	458.71	32.283	0.85288
640	650.14	20.683	466.43	30.944	0.86956
650	660.76	21.903	474.17	29.676	0.88601
660	671.39	23.178	481.94	28.475	0.90226
670	682.06	24.510	489.74	27.336	0.91829
680	692.75	25.900	497.55	26.255	0.93412
690	703.46	27.350	505.39	25.229	0.94976
700	714.19	28.862	513.26	24.253	0.96521
710	724.95	30.438	521.15	23.326	0.98047
720	735.74	32.080	529.06	22.444	0.99555
730	746.54	33.790	537.00	21.604	1.0105
740	757.37	35.570	544.96	20.804	1.0252
750	768.23	37.422	552.94	20.041	1.0398
760	779.11	39.349	560.95	19.314	1.0542
770	790.01	41.352	568.99	18.621	1.0684
780	800.94	43.434	577.04	17.958	1.0825
790	811.89	45.597	585.12	17.326	1.0965
800	822.86	47.843	593.22	16.721	1.1103
810	833.86	50.175	601.35	16.143	1.1240
820	844.88	52.595	609.50	15.591	1.1375
830	855.92	55.106	617.67	15.062	1.1508
840	866.99	57.709	625.87	14.556	1.1641
850	878.08	60.408	634.09	14.071	1.1772
860	889.19	63.206	642.32	13.606	1.1902
870	900.32	66.104	650.59	13.161	1.2031
880	911.47	69.106	658.87	12.734	1.2158
890	922.65	72.214	667.17	12.325	1.2285
900	933.85	75.431	675.50	11.931	1.2410
910	945.06	78.760	683.85	11.554	1.2534
920	956.30	82.204	692.22	11.192	1.2657
930	967.56	85.765	700.61	10.844	1.2778
940	978.85	89.446	709.02	10.509	1.2899
950	990.15	93.252	717.45	10.188	1.3018
960	1001.5	97.183	725.90	9.8782	1.3137
970	1012.8	101.25	734.37	9.5807	1.3255
980	1024.2	105.44	742.86	9.2944	1.3371
990	1035.5	109.77	751.37	9.0189	1.3487
1000	1047.0	114.24	759.90	8.7535	1.3601
1010	1058.4	118.85	768.45	8.4979	1.3715
1020	1069.8	123.61	777.01	8.2517	1.3827
1030	1081.3	128.52	785.60	8.0144	1.3939
1040	1092.7	133.58	794.20	7.7857	1.4050
1050	1104.2	138.80	802.83	7.5651	1.4160
1060	1115.7	144.17	811.47	7.3523	1.4269
1070	1127.3	149.71	820.12	7.1470	1.4378
1080	1138.8	155.42	828.80	6.9489	1.4485
1090	1150.4	161.30	837.49	6.7577	1.4591
1100	1162.0	167.35	846.20	6.5730	1.4697
1110	1173.5	173.58	854.92	6.3947	1.4802
1120	1185.2	180.00	863.66	6.2224	1.4906
1130	1196.8	186.60	872.42	6.0559	1.5010
1140	1208.4	193.39	881.20	5.8949	1.5112
1150	1220.1	200.37	889.99	5.7394	1.5214
1160	1231.8	207.55	898.79	5.5890	1.5315
1170	1243.5	214.94	907.61	5.4435	1.5415
1180	1255.2	222.53	916.45	5.3027	1.5515
1190	1266.9	230.33	925.30	5.1665	1.5614
1200	1278.6	238.35	934.17	5.0347	1.5712
1210	1290.4	246.59	943.05	4.9070	1.5810
1220	1302.1	255.05	951.94	4.7835	1.5907
1230	1313.9	263.74	960.85	4.6638	1.6003
1240	1325.7	272.66	969.78	4.5478	1.6098
1250	1337.5	281.82	978.72	4.4355	1.6193
1260	1349.3	291.22	987.67	4.3266	1.6287
1270	1361.2	300.87	996.63	4.2211	1.6381
1280	1373.0	310.77	1005.6	4.1188	1.6474
1290	1384.9	320.92	1014.6	4.0196	1.6566
1300	1396.8	331.34	1023.6	3.9234	1.6658
1310	1408.7	342.03	1032.6	3.8301	1.6749
1320	1420.6	352.98	1041.7	3.7396	1.6840
1330	1432.5	364.21	1050.7	3.6517	1.6929
1340	1444.4	375.73	1059.8	3.5664	1.7019
1350	1456.3	387.53	1068.8	3.4836	1.7107
1360	1468.3	399.62	1077.9	3.4033	1.7196
1370	1480.3	412.01	1087.0	3.3252	1.7283
1380	1492.2	424.70	1096.1	3.2494	1.7370
1390	1504.2	437.69	1105.2	3.1757	1.7457
1400	1516.2	451.01	1114.3	3.1042	1.7543
1410	1528.2	464.64	1123.5	3.0346	1.7628
1420	1540.2	478.59	1132.6	2.9670	1.7713
1430	1552.3	492.88	1141.8	2.9013	1.7798
1440	1564.3	507.50	1151.0	2.8374	1.7882
1450	1576.4	522.46	1160.1	2.7753	1.7965
1460	1588.4	537.77	1169.3	2.7149	1.8048
1470	1600.5	553.44	1178.5	2.6561	1.8131
1480	1612.6	569.46	1187.8	2.5989	1.8212
1490	1624.7	585.85	1197.0	2.5433	1.8294
1500	1636.8	602.61	1206.2	2.4892	1.8375
1510	1648.9	619.75	1215.5	2.4365	1.8455
1520	1661.0	637.27	1224.7	2.3852	1.8535
1530	1673.2	655.18	1234.0	2.3352	1.8615
1540	1685.3	673.49	1243.3	2.2866	1.8694
1550	1697.5	692.21	1252.5	2.2392	1.8773
1560	1709.6	711.33	1261.8	2.1931	1.8851
1570	1721.8	730.87	1271.1	2.1481	1.8929
1580	1734.0	750.83	1280.4	2.1043	1.9006
1590	1746.2	771.22	1289.8	2.0617	1.9083
1600	1758.4	792.05	1299.1	2.0201	1.9159
1610	1770.6	813.32	1308.4	1.9795	1.9236
1620	1782.8	835.04	1317.8	1.9400	1.9311
1630	1795.0	857.22	1327.1	1.9015	1.9386
1640	1807.3	879.86	1336.5	1.8639	1.9461
1650	1819.5	902.98	1345.9	1.8273	1.9536
1660	1831.8	926.57	1355.3	1.7916	1.9610
1670	1844.0	950.65	1364.6	1.7567	1.9683
1680	1856.3	975.22	1374.0	1.7227	1.9757
1690	1868.6	1000.3	1383.5	1.6895	1.9829
1700	1880.8	1025.9	1392.9	1.6571	1.9902
1710	1893.1	1052.0	1402.3	1.6255	1.9974
1720	1905.5	1078.6	1411.7	1.5947	2.0046
1730	1917.8	1105.7	1421.2	1.5646	2.0117
1740	1930.1	1133.4	1430.6	1.5352	2.0188
1750	1942.4	1161.7	1440.1	1.5065	2.0259
1760	1954.7	1190.5	1449.5	1.4784	2.0329
1770	1967.1	1219.8	1459.0	1.4510	2.0399
1780	1979.4	1249.7	1468.5	1.4243	2.0469
1790	1991.8	1280.2	1478.0	1.3982	2.0538
1800	2004.1	1311.3	1487.5	1.3726	2.0607
1810	2016.5	1343.0	1497.0	1.3477	2.0675
1820	2028.9	1375.3	1506.5	1.3233	2.0743
1830	2041.3	1408.2	1516.0	1.2995	2.0811
1840	2053.7	1441.7	1525.5	1.2762	2.0879
1850	2066.1	1475.9	1535.0	1.2535	2.0946
1860	2078.5	1510.7	1544.6	1.2312	2.1013
1870	2090.9	1546.1	1554.1	1.2095	2.1080
1880	2103.3	1582.2	1563.7	1.1882	2.1146
1890	2115.7	1619.0	1573.2	1.1674	2.1212
1900	2128.2	1656.4	1582.8	1.1471	2.1277
1910	2140.6	1694.5	1592.3	1.1272	2.1343
1920	2153.1	1733.3	1601.9	1.1077	2.1408
1930	2165.5	1772.8	1611.5	1.0886	2.1472
1940	2178.0	1813.1	1621.1	1.0700	2.1537
1950	2190.4	1854.0	1630.7	1.0518	2.1601
1960	2202.9	1895.7	1640.3	1.0339	2.1665
1970	2215.4	1938.1	1649.9	1.0165	2.1728
1980	2227.9	1981.2	1659.5	0.99937	2.1791
1990	2240.4	2025.2	1669.1	0.98264	2.1854
2000	2252.9	2069.8	1678.8	0.96626	2.1917

The table as text, English units

T [R]	h [Btu/lbm]	P_r	u [Btu/lbm]	v_r	s° [Btu/lbm·R]
360	86.283	0.33656	61.601	1069.7	−0.074661
380	91.071	0.40650	65.018	934.81	−0.061716
400	95.860	0.48625	68.436	822.61	−0.049434
420	100.65	0.57661	71.855	728.40	−0.037749
440	105.44	0.67836	75.274	648.62	−0.026607
460	110.23	0.79236	78.694	580.55	−0.015957
480	115.03	0.91945	82.116	522.05	−0.0057580
500	119.82	1.0605	85.539	471.47	0.0040278
520	124.61	1.2165	88.964	427.47	0.013433
540	129.41	1.3882	92.391	388.99	0.022488
560	134.22	1.5767	95.821	355.17	0.031218
580	139.02	1.7830	99.254	325.30	0.039648
600	143.83	2.0080	102.69	298.80	0.047797
620	148.64	2.2529	106.13	275.21	0.055685
640	153.45	2.5186	109.58	254.11	0.063329
660	158.27	2.8063	113.02	235.18	0.070746
680	163.10	3.1172	116.48	218.15	0.077949
700	167.93	3.4524	119.94	202.76	0.084951
720	172.77	3.8131	123.41	188.82	0.091764
740	177.61	4.2006	126.88	176.16	0.098401
760	182.46	4.6162	130.36	164.64	0.10487
780	187.32	5.0613	133.84	154.11	0.11118
800	192.19	5.5371	137.34	144.48	0.11734
820	197.06	6.0451	140.84	135.65	0.12336
840	201.95	6.5869	144.36	127.53	0.12924
860	206.84	7.1638	147.88	120.05	0.13500
880	211.74	7.7775	151.41	113.15	0.14063
900	216.65	8.4295	154.95	106.77	0.14615
920	221.58	9.1216	158.50	100.86	0.15156
940	226.51	9.8553	162.06	95.380	0.15687
960	231.45	10.633	165.63	90.289	0.16207
980	236.41	11.455	169.22	85.552	0.16718
1000	241.38	12.325	172.81	81.139	0.17220
1020	246.35	13.243	176.42	77.020	0.17713
1040	251.34	14.213	180.04	73.173	0.18197
1060	256.34	15.236	183.67	69.574	0.18673
1080	261.36	16.313	187.31	66.204	0.19142
1100	266.38	17.448	190.97	63.044	0.19603
1120	271.42	18.642	194.63	60.078	0.20057
1140	276.47	19.898	198.31	57.291	0.20504
1160	281.54	21.218	202.01	54.669	0.20944
1180	286.61	22.605	205.71	52.202	0.21378
1200	291.70	24.060	209.43	49.876	0.21806
1220	296.81	25.586	213.16	47.683	0.22228
1240	301.92	27.186	216.91	45.612	0.22643
1260	307.05	28.862	220.66	43.656	0.23054
1280	312.19	30.617	224.43	41.807	0.23458
1300	317.34	32.454	228.21	40.057	0.23858
1320	322.51	34.376	232.01	38.400	0.24252
1340	327.69	36.384	235.81	36.829	0.24642
1360	332.88	38.483	239.63	35.340	0.25026
1380	338.08	40.676	243.47	33.927	0.25406
1400	343.30	42.964	247.31	32.585	0.25781
1420	348.53	45.352	251.17	31.310	0.26152
1440	353.77	47.843	255.04	30.098	0.26519
1460	359.02	50.439	258.92	28.946	0.26881
1480	364.29	53.145	262.82	27.848	0.27239
1500	369.56	55.963	266.73	26.803	0.27593
1520	374.86	58.897	270.64	25.808	0.27944
1540	380.16	61.950	274.57	24.859	0.28290
1560	385.47	65.127	278.52	23.953	0.28633
1580	390.80	68.430	282.47	23.089	0.28972
1600	396.13	71.864	286.44	22.264	0.29308
1620	401.48	75.431	290.41	21.477	0.29640
1640	406.84	79.137	294.40	20.724	0.29969
1660	412.21	82.985	298.40	20.004	0.30295
1680	417.59	86.978	302.41	19.315	0.30617
1700	422.99	91.122	306.43	18.656	0.30936
1720	428.39	95.420	310.46	18.026	0.31252
1740	433.80	99.876	314.51	17.422	0.31565
1760	439.23	104.50	318.56	16.843	0.31875
1780	444.66	109.28	322.63	16.288	0.32182
1800	450.11	114.24	326.70	15.756	0.32486
1820	455.56	119.37	330.78	15.246	0.32787
1840	461.03	124.69	334.88	14.757	0.33086
1860	466.50	130.19	338.98	14.287	0.33382
1880	471.99	135.88	343.09	13.836	0.33675
1900	477.48	141.76	347.21	13.403	0.33966
1920	482.98	147.85	351.35	12.986	0.34254
1940	488.50	154.14	355.49	12.586	0.34540
1960	494.02	160.64	359.64	12.201	0.34823
1980	499.55	167.35	363.80	11.831	0.35104
2000	505.09	174.29	367.97	11.475	0.35382
2020	510.64	181.45	372.14	11.133	0.35658
2040	516.19	188.84	376.33	10.803	0.35932
2060	521.76	196.47	380.52	10.485	0.36203
2080	527.33	204.34	384.73	10.179	0.36473
2100	532.91	212.45	388.94	9.8846	0.36740
2120	538.51	220.82	393.16	9.6004	0.37005
2140	544.10	229.45	397.38	9.3265	0.37267
2160	549.71	238.35	401.62	9.0624	0.37528
2180	555.32	247.51	405.86	8.8076	0.37787
2200	560.95	256.96	410.11	8.5617	0.38044
2220	566.58	266.68	414.37	8.3245	0.38298
2240	572.21	276.70	418.64	8.0954	0.38551
2260	577.86	287.01	422.91	7.8743	0.38802
2280	583.51	297.62	427.19	7.6607	0.39051
2300	589.17	308.55	431.48	7.4543	0.39298
2320	594.83	319.78	435.77	7.2549	0.39543
2340	600.50	331.34	440.07	7.0622	0.39787
2360	606.18	343.23	444.38	6.8758	0.40028
2380	611.87	355.45	448.69	6.6957	0.40268
2400	617.56	368.02	453.02	6.5214	0.40507
2420	623.26	380.94	457.34	6.3528	0.40743
2440	628.97	394.21	461.68	6.1896	0.40978
2460	634.68	407.84	466.02	6.0317	0.41211
2480	640.40	421.85	470.37	5.8789	0.41442
2500	646.12	436.24	474.72	5.7309	0.41672
2520	651.85	451.01	479.08	5.5875	0.41901
2540	657.59	466.17	483.44	5.4486	0.42127
2560	663.33	481.74	487.82	5.3141	0.42353
2580	669.08	497.71	492.19	5.1837	0.42576
2600	674.83	514.11	496.58	5.0573	0.42798
2620	680.59	530.93	500.97	4.9348	0.43019
2640	686.36	548.18	505.36	4.8160	0.43238
2660	692.13	565.87	509.76	4.7007	0.43456
2680	697.91	584.01	514.17	4.5889	0.43672
2700	703.69	602.61	518.58	4.4805	0.43887
2720	709.48	621.68	522.99	4.3753	0.44101
2740	715.27	641.22	527.41	4.2731	0.44313
2760	721.07	661.24	531.84	4.1739	0.44524
2780	726.87	681.76	536.27	4.0777	0.44733
2800	732.68	702.78	540.71	3.9842	0.44942
2820	738.49	724.31	545.15	3.8934	0.45149
2840	744.31	746.36	549.60	3.8051	0.45354
2860	750.13	768.93	554.05	3.7194	0.45559
2880	755.96	792.05	558.51	3.6361	0.45761
2900	761.79	815.71	562.97	3.5552	0.45963
2920	767.63	839.93	567.43	3.4765	0.46164
2940	773.47	864.72	571.90	3.4000	0.46363
2960	779.32	890.08	576.38	3.3256	0.46562
2980	785.17	916.02	580.86	3.2532	0.46759
3000	791.03	942.57	585.35	3.1828	0.46954
3020	796.89	969.72	589.83	3.1143	0.47149
3040	802.75	997.48	594.33	3.0477	0.47343
3060	808.62	1025.9	598.83	2.9828	0.47535
3080	814.49	1054.9	603.33	2.9197	0.47726
3100	820.37	1084.6	607.83	2.8583	0.47917
3120	826.25	1114.9	612.34	2.7984	0.48106
3140	832.14	1145.9	616.86	2.7402	0.48294
3160	838.03	1177.6	621.38	2.6834	0.48481
3180	843.92	1210.0	625.90	2.6282	0.48667
3200	849.82	1243.0	630.43	2.5743	0.48851
3220	855.72	1276.8	634.96	2.5219	0.49035
3240	861.63	1311.3	639.49	2.4708	0.49218
3260	867.54	1346.6	644.03	2.4209	0.49400
3280	873.45	1382.6	648.57	2.3724	0.49581
3300	879.37	1419.3	653.12	2.3251	0.49761
3320	885.29	1456.8	657.67	2.2789	0.49940
3340	891.21	1495.1	662.22	2.2339	0.50118
3360	897.14	1534.2	666.78	2.1900	0.50294
3380	903.07	1574.1	671.34	2.1472	0.50471
3400	909.01	1614.9	675.90	2.1054	0.50646
3420	914.95	1656.4	680.47	2.0647	0.50820
3440	920.89	1698.8	685.04	2.0250	0.50993
3460	926.84	1742.0	689.62	1.9862	0.51165
3480	932.79	1786.2	694.20	1.9483	0.51337
3500	938.74	1831.2	698.78	1.9114	0.51507
3520	944.70	1877.1	703.37	1.8753	0.51677
3540	950.66	1923.9	707.96	1.8400	0.51846
3560	956.62	1971.6	712.55	1.8056	0.52014
3580	962.59	2020.2	717.14	1.7721	0.52181
3600	968.56	2069.8	721.74	1.7393	0.52348

Sources

Values computed by Simuveliq with CoolProp 8.0.0 (downloaded from PyPI, code on GitHub), free software under the MIT license. The temperatures and pressures of the table were chosen by Simuveliq; no table was copied from a book.

Equation of state: Eric W. Lemmon, Richard T. Jacobsen, Steven G. Penoncello, Daniel G. Friend (2000). Thermodynamic Properties of Air and Mixtures of Nitrogen, Argon, and Oxygen from 60 to 2000 K at Pressures to 2000 MPa. J. Phys. Chem. Ref. Data 29, 331–385. doi:10.1063/1.1285884
CoolProp: Bell, Ian H., Wronski, Jorrit, Quoilin, Sylvain, Lemort, Vincent (2014). Pure and Pseudo-pure Fluid Thermophysical Property Evaluation and the Open-Source Thermophysical Property Library CoolProp. Ind. Eng. Chem. Res. 53, 2498–2508. doi:10.1021/ie4033999

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Tables

Water: saturation (T) · saturation (P) · superheated vapor · compressed liquid
R-134a: saturation (T) · saturation (P) · superheated vapor
R-22: saturation (T) · saturation (P) · superheated vapor
R-32: saturation (T) · saturation (P) · superheated vapor
R-404A: saturation (T) · saturation (P) · superheated vapor
R-410A: saturation (T) · saturation (P) · superheated vapor
R-1234yf: saturation (T) · saturation (P) · superheated vapor
Ammonia (R-717): saturation (T) · saturation (P) · superheated vapor
Carbon dioxide (R-744): saturation (T) · saturation (P) · superheated vapor
Propane (R-290): saturation (T) · saturation (P) · superheated vapor
Isobutane (R-600a): saturation (T) · saturation (P) · superheated vapor
Nitrogen: saturation (T) · saturation (P) · superheated vapor
Oxygen: saturation (T) · saturation (P) · superheated vapor
Hydrogen: saturation (T) · saturation (P) · superheated vapor
Helium: saturation (T) · saturation (P) · superheated vapor
Argon: saturation (T) · saturation (P) · superheated vapor
Methane: saturation (T) · saturation (P) · superheated vapor
Air: ideal gas
Nitrogen (N₂) per mole: ideal gas
Oxygen (O₂) per mole: ideal gas
Carbon dioxide (CO₂) per mole: ideal gas
Carbon monoxide (CO) per mole: ideal gas
Hydrogen (H₂) per mole: ideal gas
Water vapor (H₂O) per mole: ideal gas
critical constants and molar mass
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