KV SoftwarePT charts / R-410A
R-410A PT chart
Saturation pressure and temperature for R-410A, from -40 to 150 °F in 2 °F steps, in psig at sea level.
R-410A is R-32 / R-125 (50/50 wt). It is a near-azeotropic blend with about 0.19 °F of glide, so bubble and dew pressure differ. ASHRAE 34 safety class A1, lower toxicity and no flame propagation.
Superheat and subcooling calculator
Type what your gauges and clamp read for R-410A. Superheat uses the dew point, subcooling uses the bubble point.
Superheat
Enter the suction pressure.
Subcooling
Enter the liquid pressure.
R-410A pressure temperature chart
| Temp °F | Bubble psig | Dew psig |
|---|---|---|
| -40 | 10.8 | 10.7 |
| -38 | 12.1 | 12.0 |
| -36 | 13.4 | 13.3 |
| -34 | 14.8 | 14.7 |
| -32 | 16.3 | 16.2 |
| -30 | 17.8 | 17.7 |
| -28 | 19.4 | 19.3 |
| -26 | 21.0 | 20.9 |
| -24 | 22.7 | 22.6 |
| -22 | 24.5 | 24.4 |
| -20 | 26.3 | 26.2 |
| -18 | 28.2 | 28.1 |
| -16 | 30.2 | 30.0 |
| -14 | 32.2 | 32.0 |
| -12 | 34.3 | 34.1 |
| -10 | 36.5 | 36.3 |
| -8 | 38.7 | 38.5 |
| -6 | 41.0 | 40.8 |
| -4 | 43.4 | 43.2 |
| -2 | 45.9 | 45.7 |
| 0 | 48.4 | 48.2 |
| 2 | 51.1 | 50.8 |
| 4 | 53.8 | 53.5 |
| 6 | 56.6 | 56.3 |
| 8 | 59.5 | 59.2 |
| 10 | 62.4 | 62.2 |
| 12 | 65.5 | 65.2 |
| 14 | 68.6 | 68.4 |
| 16 | 71.9 | 71.6 |
| 18 | 75.2 | 74.9 |
| 20 | 78.7 | 78.4 |
| 22 | 82.2 | 81.9 |
| 24 | 85.8 | 85.5 |
| 26 | 89.6 | 89.2 |
| 28 | 93.4 | 93.1 |
| 30 | 97.4 | 97.0 |
| 32 | 101.4 | 101.1 |
| 34 | 105.6 | 105.2 |
| 36 | 109.9 | 109.5 |
| 38 | 114.3 | 113.9 |
| 40 | 118.8 | 118.4 |
| 42 | 123.4 | 123.0 |
| 44 | 128.2 | 127.7 |
| 46 | 133.0 | 132.6 |
| 48 | 138.0 | 137.5 |
| 50 | 143.1 | 142.6 |
| 52 | 148.4 | 147.9 |
| 54 | 153.8 | 153.2 |
| 56 | 159.3 | 158.7 |
| 58 | 164.9 | 164.4 |
| 60 | 170.7 | 170.1 |
| 62 | 176.6 | 176.0 |
| 64 | 182.7 | 182.1 |
| 66 | 188.9 | 188.3 |
| 68 | 195.2 | 194.6 |
| 70 | 201.7 | 201.1 |
| 72 | 208.4 | 207.7 |
| 74 | 215.2 | 214.5 |
| 76 | 222.1 | 221.4 |
| 78 | 229.2 | 228.5 |
| 80 | 236.5 | 235.7 |
| 82 | 243.9 | 243.2 |
| 84 | 251.5 | 250.7 |
| 86 | 259.3 | 258.5 |
| 88 | 267.2 | 266.4 |
| 90 | 275.3 | 274.5 |
| 92 | 283.6 | 282.7 |
| 94 | 292.1 | 291.2 |
| 96 | 300.7 | 299.8 |
| 98 | 309.5 | 308.6 |
| 100 | 318.5 | 317.6 |
| 102 | 327.7 | 326.7 |
| 104 | 337.1 | 336.1 |
| 106 | 346.7 | 345.7 |
| 108 | 356.5 | 355.4 |
| 110 | 366.5 | 365.4 |
| 112 | 376.6 | 375.5 |
| 114 | 387.0 | 385.9 |
| 116 | 397.6 | 396.5 |
| 118 | 408.4 | 407.3 |
| 120 | 419.5 | 418.3 |
| 122 | 430.7 | 429.6 |
| 124 | 442.2 | 441.0 |
| 126 | 453.9 | 452.7 |
| 128 | 465.9 | 464.7 |
| 130 | 478.0 | 476.8 |
| 132 | 490.5 | 489.3 |
| 134 | 503.1 | 501.9 |
| 136 | 516.0 | 514.9 |
| 138 | 529.2 | 528.0 |
| 140 | 542.6 | 541.5 |
| 142 | 556.3 | 555.2 |
| 144 | 570.3 | 569.2 |
| 146 | 584.5 | 583.5 |
| 148 | 599.1 | 598.1 |
| 150 | 613.9 | 613.0 |
Saturon
All 9 refrigerants on your iPhone, offline in the attic. Superheat, subcooling, target superheat, airflow. $7.99 once.
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Data: NIST REFPROP-lineage Helmholtz EOS via CoolProp 7.2.0; A2L blends cross-checked vs OEM (Chemours Opteon) glide/pressure anchors. Data version 2026.06.1, pressures in psig at standard sea level (14.696 psia). Reference aid, not a substitute for the manufacturer charging chart. Verify against the equipment nameplate. Published 24 October 2026 by Karolis Valatka, who makes Saturon.