Standard 1-1/2" nominal Schedule 40 carbon steel pipe has an exact ASME inside diameter of 1.61 inches, holding 0.1058 US gallons (1.313 liters per meter) per linear foot. Part of our Gas Pipe Volume Calculator and universal Pipe Volume Calculator suite.
Calculations are based on cylindrical formula \(V = \pi r^2 L\). Verify dimensions against manufacturer specs for code submittals.
Volumetric liquid holding capacity and dry/wet mechanical loads for 1-1/2" carbon steel pipe runs.
| Pipe Length (Ft) | US Gallons | Liters | Cubic Feet (ft³) | Fluid Weight (lbs) | Dry Steel (lbs) | Total Wet Weight |
|---|---|---|---|---|---|---|
| 1 ft | 0.106 gal | 0.40 L | 0.014 ft³ | 0.9 lbs | 2.7 lbs | 3.6 lbs |
| 2 ft | 0.212 gal | 0.80 L | 0.028 ft³ | 1.8 lbs | 5.4 lbs | 7.2 lbs |
| 5 ft | 0.529 gal | 2.00 L | 0.070 ft³ | 4.4 lbs | 13.6 lbs | 18.0 lbs |
| 10 ft | 1.058 gal | 4.00 L | 0.141 ft³ | 8.8 lbs | 27.2 lbs | 36.0 lbs |
| 20 ft | 2.116 gal | 8.00 L | 0.282 ft³ | 17.6 lbs | 54.4 lbs | 72.0 lbs |
| 50 ft | 5.29 gal | 20.0 L | 0.70 ft³ | 44.1 lbs | 135.9 lbs | 180.0 lbs |
| 100 ft | 10.58 gal | 40.0 L | 1.41 ft³ | 88.2 lbs | 271.8 lbs | 360.0 lbs |
| 250 ft | 26.45 gal | 100.1 L | 3.52 ft³ | 220.5 lbs | 679.5 lbs | 900.0 lbs |
| 500 ft | 52.90 gal | 200.1 L | 7.05 ft³ | 441.0 lbs | 1359.0 lbs | 1800.0 lbs |
Exact cylinder geometry calculations based on ASME B36.10M inside diameter tolerances.
Divide ASME inside diameter by 2:
r = 1.61" / 2 = 0.8050" Calculate circular internal cross-sectional area:
A = \pi \times (0.8050)^2 = 2.0358 sq in Multiply cross-sectional area by 12 inches (1 linear foot):
V_linear = 2.0358 \times 12 = 24.430 cu in/ft Divide cubic inches by 231 (cubic inches in 1 US Gallon):
Gal/Ft = 24.430 / 231 = 0.1058 Gal/Ft Physical dimensions, structural weights, and pressure thresholds.
Primary Specification Note: Large residential and small commercial multi-boiler heating system primary-secondary loops.
Navigate directly to adjacent nominal diameters or alternate pipe materials.
Engineering questions and calculations for 1-1/2" carbon steel pipe.
A standard 1-1/2 inch Schedule 40 steel pipe holds 0.1058 US Gallons (0.4005 Liters) of water per linear foot.