Convert Pound to Gallon – Gallon to Lb Conversion

Convert pounds (lbs) to gallons or gallons to pounds instantly using real liquid densities. Accurate, reliable, and trusted for over 60+ common liquids including water, diesel, and gasoline. Adjusts for temperature, pressure, and altitude to deliver

Free Tool
Real-Time
Precision
Advance Insight
John Smith

Deepak Yadav

Principal Tools Architect

Published

May 25, 2025

From:
lbs
To:
gal
Kilograms
0.000
Liters
0.000
Cubic Feet
0.000
Imperial Gal
0.000

Precision Level

Scientific Parameters & Conditions

Std input: 60°F (15.56°C). Ref: 60°F.
Std atmospheric: 14.696 psi (1 atm).
Standard: 50% RH. Not used in CDF.

Liquid Properties

Name Water
Base Density 8.3400 lb/gal
Specific Gravity 1.0000
API Gravity 10.00°
Viscosity: 1.00 cP
Formula: H₂O
Reference at 60°F and 1 atm

Environmental Correction

Temperature Factor (TDF): 1.000000
Pressure Factor (PDF): 1.000000
Humidity Factor (HDF): 1.000000
Air Pressure (from Alt.): 1.000000
Combined Density Factor (CDF): 1.000000
CDF = TDF × PDF. HDF not used.

Scientific Formula

1. Actual Density

ρactual = ρbase × CDF

ρactual: Corrected density (lb/gal)

ρbase: Base density (lb/gal)

CDF: Combined Density Factor

2. Mass-Volume Conversion

Mass(lbs) = Vol(gal) × ρactual

Vol(gal) = Mass(lbs) / ρactual

Container Converter (for Water)

gal
lbs
Select a container for its typical volume and approx. weight using current liquid & conditions.

Batch Scientific Calculator

Supports sci. notation, up to 6 decimals.

Density Comparison Chart

Densities shown are base values (referenced at 60°F, 1 atm)

Common Liquid Conversions

Current Liquid & Conditions

Pounds (lbs) to Gallons (gal)

LBSGAL (US)

Gallons (gal) to Pounds (lbs)

GAL (US)LBS

Based on selected liquid and conditions.

Visual Input Comparison

Enter a positive value above to see comparable items.

Calculation History