Mass per volume density.
Pounds per Imperial gallon to Kilograms per Cubic Meter Converter — lb/imp gal to kg/m3
Convert Pound per Imperial gallon (lb/imp gal) to Kilogram per Cubic Meter (kg/m3) using the exact conversion factor (1 pound per imperial gallon = 99.77637266 kilogram per cubic meter). See the formula, worked examples, conversion table, and common uses.
Pounds per Imperial gallon to Kilograms per Cubic Meter converter
Converter
Density Converter
Convert thousands of mass-per-volume density combinations for science, engineering, agriculture, and fluids.
Context values
Some unit families need one extra value for a physically accurate result.
Mass per volume density.
Result = input x 99.77637266 / 1.
Density uses kilograms per cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Pounds per Imperial gallon to Kilograms per Cubic Meter
Pound per Imperial gallon and Kilogram per Cubic Meter both measure density — mass per unit volume — a property used to identify materials, check manufacturing quality, and predict whether something floats or sinks. As a fixed reference point, water has a density of exactly 1000 kg/m³ (1 g/cm³, 1 g/mL) at its temperature of maximum density, which is why many density figures in science and engineering are quoted relative to water. Both are mass per volume density units.
Formula
kilograms per cubic meter = pounds per imperial gallon × 99.7763726631
This factor comes from each unit's defined relationship to the category's base unit: 1 pound per imperial gallon equals 99.7763726631 base units, and 1 kilogram per cubic meter equals 1 base unit, so dividing one by the other gives the direct pound per imperial gallon-to-kilogram per cubic meter factor of 99.7763726631.
Simple example
1 lb/imp gal × 99.77637266 = 99.77637266 kg/m3
1 pound per imperial gallon = 99.77637266 kilograms per cubic meter.
Real-world example
1,000 lb/imp gal × 99.77637266 = 99,776.37266 kg/m3
1,000 pounds per imperial gallon = 99,776.37266 kilograms per cubic meter.
Conversion table
| Pound per Imperial gallon (lb/imp gal) | Kilogram per Cubic Meter (kg/m3) |
|---|---|
| 0.1 lb/imp gal | 9.977637266 kg/m3 |
| 1 lb/imp gal | 99.77637266 kg/m3 |
| 10 lb/imp gal | 997.7637266 kg/m3 |
| 100 lb/imp gal | 9,977.637266 kg/m3 |
| 1,000 lb/imp gal | 99,776.37266 kg/m3 |
| 10,000 lb/imp gal | 997,763.7266 kg/m3 |
Reverse conversion: Kilogram per Cubic Meter to Pound per Imperial gallon
99.77637266 kg/m3 × 0.01002241285 = 1 lb/imp gal
99.77637266 kilograms per cubic meter = 1 pounds per imperial gallon.
pounds per imperial gallon = kilograms per cubic meter × 0.010022412855
For a page dedicated to this direction, see Kilogram per Cubic Meter to Pound per Imperial gallon.
Understanding the Pound per Imperial gallon (lb/imp gal)
Mass per volume density.
Understanding the Kilogram per Cubic Meter
Kilogram per Cubic Meter (kg/m3) measures density. The SI coherent unit for density — the form all other metric density/concentration units in this catalog are ultimately defined relative to. It is classified as a SI coherent derived unit.
Where it's used: Universal — the official SI unit for density, used throughout physics and engineering worldwide
kg/m³ vs. g/L vs. kg/L. All three are exactly related: 1 kg/m³ = 1 g/L, and 1,000 kg/m³ = 1 kg/L. kg/m³ is the formal SI-coherent form; g/L and kg/L are more commonly used in everyday and laboratory contexts.
Uses of the Kilogram per Cubic Meter today
- Physics and engineering reference density values
- Material property tables in scientific literature
- Fluid dynamics and structural engineering calculations
Kilogram per Cubic Meter — sources
- BIPM SI Brochure, 9th edition — Kilogram per cubic meter as the SI coherent derived unit for density.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many kilograms per cubic meter are in 1 pound per imperial gallon?
1 pound per imperial gallon equals 99.77637266 kilograms per cubic meter, using the exact defined conversion factor rather than an estimate.
How do I convert pound per imperial gallon to kilogram per cubic meter?
Multiply the pound per imperial gallon value by 99.77637266. The converter above does this instantly to whatever precision you set.
How do I convert kilogram per cubic meter back to pound per imperial gallon?
Use the reverse factor: 1 kilogram per cubic meter equals 0.0100224129 pounds per imperial gallon. You can also use the swap control in the converter above to flip the direction instantly.
What is a pound per imperial gallon?
Pound per Imperial gallon (lb/imp gal) is a unit of density.
What is a kilogram per cubic meter?
Kilogram per Cubic Meter (kg/m3) measures density. The SI coherent unit for density — the form all other metric density/concentration units in this catalog are ultimately defined relative to. It is classified as a SI coherent derived unit.
Is the pound per imperial gallon to kilogram per cubic meter conversion exact?
Yes. Both pound per imperial gallon and kilogram per cubic meter are defined by fixed standards rather than physical artifacts, so the factor of 99.77637266 used above is exact to as many digits as you choose to display.
What is the difference between kg/m³ vs. g/l vs. kg/l?
All three are exactly related: 1 kg/m³ = 1 g/L, and 1,000 kg/m³ = 1 kg/L. kg/m³ is the formal SI-coherent form; g/L and kg/L are more commonly used in everyday and laboratory contexts.