Start Drawing
5 Core Pillar Tools
Pipe Volume Calculator Pipe Flow Rate Calculator Drain Pipe Slope Calculator Water Heater Sizing Calculator Plumbing Drawing Software
Browse All 30+ Tools & Calculators
ASTM D1785 / ASTM D2665 Schedule 40 True ID: 6.065" (154.05 mm) 180 PSI @ 73°F

6" Schedule 40 PVC Pipe Volume & Capacity Calculator

Standard 6" nominal Schedule 40 PVC pipe has an exact inside diameter of 6.065 inches, holding 1.5008 US gallons (18.638 liters per meter) per linear foot. Part of our PVC Pipe Volume Hub and universal Pipe Volume Calculator suite.

Presets:
Calculated Result

Total Liquid Capacity

Internal Holding Volume
30.016 US gallons
≈ 113.62 litres

Unit Conversions

US Gallons 30.016 gal
Litres 113.62 L
Cubic Feet (ft³) 4.013 ft³
Cubic Inches (in³) 6,933.66 in³
Imperial Gallons 24.993 UK gal
Cubic Meters (m³) 0.1136 m³
Filled Water Weight 250.3 lbs (113.6 kg)
Linear Capacity Rate 1.5008 gal/ft

Calculations are based on cylindrical formula \(V = \pi r^2 L\). Verify dimensions against manufacturer specs for code submittals.

Pre-Calculated Capacity Table

6" Schedule 40 PVC Quick Reference Sizing Chart

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 1.501 gal 5.68 L 0.201 ft³ 12.5 lbs 3.5 lbs 16.0 lbs
2 ft 3.002 gal 11.36 L 0.401 ft³ 25.0 lbs 7.1 lbs 32.1 lbs
5 ft 7.504 gal 28.40 L 1.003 ft³ 62.6 lbs 17.6 lbs 80.2 lbs
10 ft 15.008 gal 56.81 L 2.006 ft³ 125.2 lbs 35.3 lbs 160.5 lbs
20 ft 30.016 gal 113.62 L 4.012 ft³ 250.3 lbs 70.6 lbs 320.9 lbs
50 ft 75.04 gal 284.0 L 10.03 ft³ 625.9 lbs 176.5 lbs 802.4 lbs
100 ft 150.08 gal 568.1 L 20.06 ft³ 1251.7 lbs 353.0 lbs 1604.7 lbs
250 ft 375.20 gal 1420.2 L 50.15 ft³ 3129.3 lbs 882.5 lbs 4011.8 lbs
500 ft 750.40 gal 2840.4 L 100.30 ft³ 6258.5 lbs 1765.0 lbs 8023.5 lbs
Engineering Formula

How to Calculate 6" PVC Pipe Volume Manually

Step-by-step mathematical demonstration using cylinder geometric principles and ASTM D1785 specifications.

Step 1

Determine the Internal Radius (r)

Nominal size is 6", but true inner diameter is 6.065 inches.

r = ID / 2 = 6.065 / 2 = 3.0325"
Step 2

Calculate Cross-Sectional Area (A)

Compute circular cross-section area using $A = \pi \times r^2$:

A = \pi \times (3.0325)^2 = 28.8903 sq in
Step 3

Calculate Linear Foot Volume

Multiply cross-sectional area by 12 inches (1 linear foot):

V_linear = 28.8903 \times 12 = 346.683 cu in/ft
Step 4

Convert to US Gallons & Liters

Divide cubic inches by 231 (cubic inches in 1 US Gallon):

Gallons/Ft = 346.683 / 231 = 1.5008 Gal/Ft
Technical Specifications

6" Schedule 40 PVC Engineering Profile

Physical dimensions, pressure thresholds, and hydraulic velocity limits.

Outside Diameter (OD)
6.625 inches
168.3 mm
Inside Diameter (ID)
6.065 inches
154.05 mm
Wall Thickness
0.28 inches
ASTM D1785 Tolerance
Max Recommended Flow
450.2 GPM
At 5 ft/s velocity
Working Pressure
180 PSI
At 73°F (23°C)
Max Temperature Limit
140°F
60°C continuous

Common Plumbing & Piping Applications for 6" Schedule 40:

  • Commercial sewer main lines
  • Large culvert and site stormwater collection
  • Industrial cooling loop feeds

Primary Use Case: Heavy commercial building sanitary collectors, stormwater retention drainage, and industrial low-pressure process piping.

Size Navigation

Compare Other PVC Pipe Sizes

Explore adjacent diameter calculations or compare with different pressure schedules.

← Previous Size 4" Schedule 40 PVC Overview Directory All PVC Pipe Sizes (Sch 40 & 80) Next Size → 8" Schedule 40 PVC Compare Alternative Schedule ↔ 6" Schedule 80 PVC
Cross-Material Comparison

Compare 6" Pipe in Other Materials

Compare fluid holding capacity, wall thickness, and weight against other standard piping materials for 6" nominal diameter:

Copper Tubing (ASTM B88) 6" Copper (Type K/L/M) Cast Iron DWV (ASTM A888) Cast Iron Soil Pipe Schedule 40 Steel (ASTM A53) Steel Schedule 40 Pipe Fluid Velocity & GPM 6" Flow Rate Calculator
Expert FAQ Guide

6" Schedule 40 PVC FAQs

Frequently asked engineering and volumetric capacity questions for 6" PVC.

2 Questions Answered
Q1 How much water is in a 6-inch PVC pipe per foot?

A 6-inch Schedule 40 PVC pipe holds 1.5008 US Gallons (5.681 Liters) of water per linear foot.

Q2 What is the volume of a 20-foot 6" PVC pipe?

A single 20-foot section holds approximately 30.02 US Gallons (113.6 Liters) of water.

Pipe Volume Suite

Related Pipe Volume Calculators

Explore specialized tools to calculate liquid holding volume, fluid weight, and pipe material capacity.

Pillar Tool

Pipe Volume Calculator

Universal cylinder volume, multi-unit liquid holding capacity, and total water weight calculator.

Open Tool
US Gallons

Pipe Volume Calculator Gallons

Calculate exact pipe fluid capacity directly in US liquid gallons and imperial holding volumes.

Open Tool
Plumbing Lines

Water Pipe Volume Calculator

Domestic water service line capacity and fluid holding weight for potable plumbing lines.

Open Tool
Metric Litres

Pipe Volume Calculator Litres

Metric pipe volume calculation in litres, cubic meters, and kilograms of water capacity.

Open Tool
Schedule 40/80

PVC Pipe Volume Calculator

Actual inside diameter calculations for Schedule 40 and Schedule 80 PVC drainage and pressure pipes.

Open Tool
Gas Lines

Gas Pipe Volume Calculator

Internal volume and purge capacity calculations for natural gas and propane fuel lines.

Open Tool
Type K / L / M

Copper Pipe Volume Calculator

Internal fluid holding volume for ASTM B88 Type K, Type L, and Type M copper tubing.

Open Tool
Copied to clipboard!