Standard 4" nominal Schedule 80 PVC pipe has an exact inside diameter of 3.826 inches, holding 0.5971 US gallons (7.415 liters per meter) per linear foot. Part of our PVC Pipe Volume Hub 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.
Instant capacity and weight lookup table for common pipe lengths filled with water at 60°F (15.5°C).
| Pipe Length (Ft) | US Gallons | Liters | Cubic Feet (ft³) | Water Weight (lbs) | Dry Pipe (lbs) | Total Wet Weight |
|---|---|---|---|---|---|---|
| 1 ft | 0.597 gal | 2.26 L | 0.080 ft³ | 5.0 lbs | 2.8 lbs | 7.8 lbs |
| 2 ft | 1.194 gal | 4.52 L | 0.160 ft³ | 10.0 lbs | 5.6 lbs | 15.5 lbs |
| 5 ft | 2.986 gal | 11.30 L | 0.399 ft³ | 24.9 lbs | 13.9 lbs | 38.8 lbs |
| 10 ft | 5.971 gal | 22.60 L | 0.798 ft³ | 49.8 lbs | 27.8 lbs | 77.6 lbs |
| 20 ft | 11.942 gal | 45.20 L | 1.596 ft³ | 99.6 lbs | 55.7 lbs | 155.3 lbs |
| 50 ft | 29.85 gal | 113.0 L | 3.99 ft³ | 249.0 lbs | 139.2 lbs | 388.2 lbs |
| 100 ft | 59.71 gal | 226.0 L | 7.98 ft³ | 498.0 lbs | 278.4 lbs | 776.4 lbs |
| 250 ft | 149.27 gal | 565.0 L | 19.95 ft³ | 1245.0 lbs | 696.0 lbs | 1941.0 lbs |
| 500 ft | 298.55 gal | 1130.0 L | 39.90 ft³ | 2490.0 lbs | 1392.0 lbs | 3882.0 lbs |
Step-by-step mathematical demonstration using cylinder geometric principles and ASTM D1785 specifications.
Nominal size is 4", but true inner diameter is 3.826 inches.
r = ID / 2 = 3.826 / 2 = 1.9130" Compute circular cross-section area using $A = \pi \times r^2$:
A = \pi \times (1.9130)^2 = 11.4969 sq in Multiply cross-sectional area by 12 inches (1 linear foot):
V_linear = 11.4969 \times 12 = 137.963 cu in/ft Divide cubic inches by 231 (cubic inches in 1 US Gallon):
Gallons/Ft = 137.963 / 231 = 0.5971 Gal/Ft Physical dimensions, pressure thresholds, and hydraulic velocity limits.
Primary Use Case: Wastewater treatment facilities, heavy manufacturing water mains, and underground chemical effluent transfer lines.
Explore adjacent diameter calculations or compare with different pressure schedules.
Compare fluid holding capacity, wall thickness, and weight against other standard piping materials for 4" nominal diameter:
Frequently asked engineering and volumetric capacity questions for 4" PVC.
A 100-foot run of 4-inch Schedule 80 PVC pipe holds 59.71 US Gallons (226.0 Liters) of water.