Pound/gallon to Kilogram/cubic meter Converter
Enter the value that you want to convert pound/gallon (lb/gal) to kilogram/cubic meter (kg/m³) or kilogram/cubic meter to pound/gallon.Also written as LB/GAL to KG/M³ conversion.
1 pound/gallon = 99.7764000 kilogram/cubic meter
Formula: kilogram/cubic meter = pound/gallon value × 99.7764000
LB/GAL to KG/M³ — pound/gallon to kilogram/cubic meter
10 pound/gallon = 997.76400 kilogram/cubic meter
Popular Density Converters:
Pound/gallon to Kilogram/cubic meter: The Essentials
The Pound/gallon in Engineering
Pound/gallon (lb/gal) is a unit of density measurement. 1 pound/gallon is equal to 99.7764000 kilogram/cubic meter.
The Kilogram/cubic meter in Engineering
Kilogram/cubic meter (kg/m³) is a unit of density measurement. 1 kilogram/cubic meter is equal to 0.0100224 pound/gallon.
Density Conversions in Materials Science
Density units vary by industry: chemists use g/mL or g/cm³, engineers use kg/m³, and American petroleum standards use lb/ft³ or lb/gal. Quality control in manufacturing, buoyancy calculations in naval architecture, concrete mix design, and oil/gas well logging all require converting between density units. Different countries and standards bodies specify materials in different density units.
pound/gallon to kilogram/cubic meter metric conversion table
| 0.01 lb/gal | = | 0.99776 kg/m³ |
| 0.1 lb/gal | = | 9.97764 kg/m³ |
| 1 lb/gal | = | 99.77640 kg/m³ |
| 2 lb/gal | = | 199.55280 kg/m³ |
| 3 lb/gal | = | 299.32920 kg/m³ |
| 4 lb/gal | = | 399.10560 kg/m³ |
| 5 lb/gal | = | 498.88200 kg/m³ |
| 6 lb/gal | = | 598.65840 kg/m³ |
| 7 lb/gal | = | 698.43480 kg/m³ |
| 8 lb/gal | = | 798.21120 kg/m³ |
| 9 lb/gal | = | 897.98760 kg/m³ |
| 10 lb/gal | = | 997.76400 kg/m³ |
| 11 lb/gal | = | 1097.54040 kg/m³ |
| 12 lb/gal | = | 1197.31680 kg/m³ |
| 13 lb/gal | = | 1297.09320 kg/m³ |
| 14 lb/gal | = | 1396.86960 kg/m³ |
| 15 lb/gal | = | 1496.64600 kg/m³ |
| 16 lb/gal | = | 1596.42240 kg/m³ |
| 17 lb/gal | = | 1696.19880 kg/m³ |
| 18 lb/gal | = | 1795.97520 kg/m³ |
| 19 lb/gal | = | 1895.75160 kg/m³ |
| 20 lb/gal | = | 1995.52800 kg/m³ |
| 30 lb/gal | = | 2993.29200 kg/m³ |
| 40 lb/gal | = | 3991.05600 kg/m³ |
| 50 lb/gal | = | 4988.82000 kg/m³ |
| 60 lb/gal | = | 5986.58400 kg/m³ |
| 70 lb/gal | = | 6984.34800 kg/m³ |
| 80 lb/gal | = | 7982.11200 kg/m³ |
| 90 lb/gal | = | 8979.87600 kg/m³ |
| 100 lb/gal | = | 9977.64000 kg/m³ |
| 200 lb/gal | = | 19955.28000 kg/m³ |
| 300 lb/gal | = | 29932.92000 kg/m³ |
| 400 lb/gal | = | 39910.56000 kg/m³ |
| 500 lb/gal | = | 49888.20000 kg/m³ |
| 600 lb/gal | = | 59865.84000 kg/m³ |
| 700 lb/gal | = | 69843.48000 kg/m³ |
| 800 lb/gal | = | 79821.12000 kg/m³ |
| 900 lb/gal | = | 89798.76000 kg/m³ |
| 1000 lb/gal | = | 99776.40000 kg/m³ |
How to Convert LB/GAL to KG/M³ (Pound/gallon to Kilogram/cubic meter)?
We can convert pound/gallon to kilogram/cubic meter by using an example.
Example:
Convert 20 Pound/gallon to Kilogram/cubic meter?
We know 1 Pound/gallon = 99.7764000 kilogram/cubic meter; 1 Kilogram/cubic meter = 0.0100224 pound/gallon.
20 pound/gallon = ___kg/m³
20 × 99.7764000 = 1995.52800 kg/m³ (we know 1 pound/gallon = 99.7764000 kilogram/cubic meter)
Answer:
20 pound/gallon = 1995.52800 kilogram/cubic meter
Converting lb/gal (UK) to kg/m³: Imperial Gallon Density
The Imperial (UK) gallon is approximately 20% larger than the US gallon (1 UK gal = 4.54609 L vs. 3.78541 L for US). This means 1 lb/gal (UK) = 99.776 kg/m³, slightly less than the US equivalent. The UK gallon is still used in British fuel specifications, Commonwealth country petroleum standards, and some legacy chemical industry documentation.
- Identify the density in lb per Imperial gallon.
- Multiply by 99.776 to get kg/m³.
- For a quick estimate, multiply by 100.
- Verify: water = 10.02 lb/UK gal × 99.776 = 1,000 kg/m³ ✓.
UK Petroleum and Liquid Densities: lb/gal UK to kg/m³
Fluids referenced in UK and Commonwealth petroleum standards:
| Pound/gallon | Kilogram/cubic meter |
|---|---|
| 10.02 lb/UK gal | 1,000 kg/m³ |
| 6.80 lb/UK gal | 679 kg/m³ |
| 8.47 lb/UK gal | 845 kg/m³ |
| 8.71 lb/UK gal | 869 kg/m³ |
| 7.92 lb/UK gal | 790 kg/m³ |
| 12.63 lb/UK gal | 1,260 kg/m³ |
| 6.00 lb/UK gal | 599 kg/m³ |
| 9.56 lb/UK gal | 954 kg/m³ |
Solved Examples: lb/gal UK to kg/m³
Question 1: A UK paint specification lists coating density as 14.2 lb/UK gal. Convert to kg/m³.
Solution:
Density in kg/m³ = lb/UK gal × 99.776
= 14.2 × 99.776
= 1,417 kg/m³
Answer: 14.2 lb/UK gal = 1,417 kg/m³ for a high-build marine coating.
Question 2: Kerosene (paraffin) sold in the UK is 8.03 lb/UK gal. What is this in kg/m³?
Solution:
Density in kg/m³ = lb/UK gal × 99.776
= 8.03 × 99.776
= 801 kg/m³
Answer: 8.03 lb/UK gal = 801 kg/m³ for heating kerosene.
Question 3: A UK brewery measures mash specific gravity equivalent to 10.50 lb/UK gal. Express in kg/m³.
Solution:
Density in kg/m³ = lb/UK gal × 99.776
= 10.50 × 99.776
= 1,048 kg/m³
Answer: 10.50 lb/UK gal = 1,048 kg/m³ — typical of a medium-strength ale wort.
Practice: lb/gal UK to kg/m³
Try solving these on your own to test your understanding:
- Convert 7.20 lb/UK gal (jet fuel) to kg/m³. (Answer: 718 kg/m³)
- Express 11.80 lb/UK gal (treacle) in kg/m³. (Answer: 1,177 kg/m³)
- Vegetable oil at 9.23 lb/UK gal in kg/m³. (Answer: 921 kg/m³)
- Turpentine at 8.67 lb/UK gal — convert. (Answer: 865 kg/m³)
- Heavy fuel oil at 9.55 lb/UK gal in kg/m³. (Answer: 953 kg/m³)
US Gallon vs. UK Gallon: Avoiding Costly Confusion
The US gallon (3.785 L) and Imperial gallon (4.546 L) differ by about 20%. A fluid at 8.0 lb/US gal has density 959 kg/m³, but 8.0 lb/UK gal yields only 798 kg/m³ — a 17% discrepancy. Petroleum custody transfers between US and UK operations have historically produced billing errors when the gallon type was ambiguous. Always specify "US gal" or "UK gal" on documentation.
Historical Use of the Imperial Gallon in Commonwealth
Countries like Canada, Australia, and India historically used Imperial gallons for fuel and commodity measurement. Canada switched to metric (liters) in 1979, Australia in 1970, and India in the 1960s. However, legacy engineering documents, older equipment nameplates, and traditional industries (e.g., UK paint manufacturing) still reference lb/UK gal. Engineers working on infrastructure built before metrication must handle these units confidently.
Key Takeaways
- 1 lb/gal (UK) = 99.776 kg/m³ (approximately multiply by 100).
- Water = 10 lb per Imperial gallon (a convenient round number).
- UK gallon is 20% larger than US gallon — always specify which.
- Still found in UK marine coatings, fuel specs, and legacy documents.
- Quick conversion: lb/UK gal × 100 ≈ kg/m³.
Pound/gallon to Kilogram/cubic meter Conversion Formula
kilogram/cubic meter = pound/gallon × 99.7764000
1 pound/gallon = 99.7764000 kilogram/cubic meter
1 kilogram/cubic meter = 0.0100224 pound/gallon
Reverse: pound/gallon = kilogram/cubic meter × 0.0100224
Frequently Asked Questions
How many kilogram/cubic meter are in 1 pound/gallon?
There are 99.7764000 kilogram/cubic meter in 1 pound/gallon. To convert pound/gallon to kilogram/cubic meter, multiply the value by 99.7764000.
How do I convert pound/gallon to kilogram/cubic meter?
Multiply your pound/gallon value by 99.7764000 to get the equivalent in kilogram/cubic meter. For example, 5 pound/gallon = 5 × 99.7764000 = 498.88200 kilogram/cubic meter.
How do I convert kilogram/cubic meter to pound/gallon?
Multiply your kilogram/cubic meter value by 0.0100224 to get the equivalent in pound/gallon. Alternatively, divide by 99.7764000.
What is 10 pound/gallon in kilogram/cubic meter?
10 pound/gallon is equal to 997.76400 kilogram/cubic meter.
What is 100 pound/gallon in kilogram/cubic meter?
100 pound/gallon is equal to 9977.64000 kilogram/cubic meter.