R-744 (CO2) Pressure-Temperature Chart

Natural refrigerant. Transcritical commercial systems, heat pumps. Safety class: A1. GWP: 1.

P-T Data by Temperature

Select a temperature to see detailed calculations, warnings, and related data.

-40°F — 131 PSI
-35°F — 151.8 PSI
-30°F — 172.5 PSI
-25°F — 193.3 PSI
-20°F — 214 PSI
-15°F — 242 PSI
-10°F — 270 PSI
-5°F — 298 PSI
0°F — 326 PSI
5°F — 363 PSI
10°F — 400 PSI
15°F — 437 PSI
20°F — 474 PSI
25°F — 523 PSI
30°F — 572 PSI
35°F — 621 PSI
40°F — 670 PSI
45°F — 732.5 PSI
50°F — 795 PSI
55°F — 857.5 PSI
60°F — 920 PSI
65°F — 997.5 PSI
70°F — 1075 PSI
75°F — 1152.5 PSI
80°F — 1230 PSI

Disclaimer: This tool provides estimates for informational purposes only. Always verify calculations with a licensed professional and consult your local building department before making decisions based on these results.