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Fuel & Liquid Weight Calculator

Convert volume (Litres, Gallons) to weight (kg, lbs) for Avgas, Jet A-1, Diesel, Petrol, and Water.

Input Parameters

Calculation Results

Weight / Mass in Kilograms
72kg
Weight / Mass in Pounds
158.73lbs
Volume in Litres
100L
Volume in US Gallons
26.42US gal
Volume in Imperial Gallons
22Imp gal
Standard Fluid Density
0.72 kg/L (6.01 lbs/US gal)
Summary: 100 LITRES of Aviation Gasoline (Avgas 100LL) weighs 72 kg (158.73 lbs), equivalent to 100 Litres.
Step-by-Step Calculation Solution
1.Fluid Type: Aviation Gasoline (Avgas 100LL) (Density: 0.72 kg/L)
2.Total Volume = 100 Litres (26.42 US Gallons)
3.Total Mass = Volume × Density = 100 L × 0.72 kg/L = 72 kg (158.73 lbs)

Formula & How Fuel & Liquid Weight Calculator Works

Mathematical Formula
Weight (kg) = Volume (L) × Density (kg/L) | Weight (lbs) = Weight (kg) × 2.20462

Avgas 100LL has a standard density of 0.72 kg/L (6 lbs/US gal). Jet A-1 is denser at 0.804 kg/L (6.7 lbs/US gal). Water weighs exactly 1.0 kg/L (8.34 lbs/US gal).

How to Calculate Fuel & Liquid Weight Calculator (Step-by-Step)
  1. Enter Fluid / Fuel Type: Input your target parameter value.
  2. Enter Fuel Quantity / Amount: Input your target parameter value.
  3. Enter Input Unit: Input your target parameter value.
  4. Apply Formula: Calculate using Weight (kg) = Volume (L) × Density (kg/L) | Weight (lbs) = Weight (kg) × 2.20462.
  5. Review Results: View exact computed answers, metrics, and worked mathematical proofs.
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Frequently Asked Questions (FAQs)

How much does 100 Litres of Avgas weigh?

100 Litres of Avgas 100LL weighs 72.0 kg (approx. 158.7 lbs).

How much does a US Gallon of Jet A-1 weigh?

1 US Gallon of Jet A-1 weighs approximately 6.7 lbs (3.04 kg).

Official Regulatory & Government Data Sources

Authoritative Standards & Verified Reference Citations

Independent & Verified

Calculations and mathematical logic on this page are grounded in published statutory rules, regulatory standards, and official government data published by the following bodies:

FuelWatch Western AustraliaGovernment
Government of Western Australia (DEMIRS)

Statutory fuel price monitoring and 24-hour price transparency service for Western Australia.

www.fuelwatch.wa.gov.au
FuelCheck New South WalesGovernment
NSW Government (Department of Customer Service)

Real-time statutory fuel price matching across all service stations in New South Wales.

www.fuelcheck.nsw.gov.au
Green Vehicle Guide (GVG)Government
Australian Department of Infrastructure, Transport & Regional Development

Official Australian fuel consumption ratings (L/100km) and tailpipe CO₂ emissions data.

www.greenvehicleguide.gov.au

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