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Calcimator

Hydrogen Storage Calculator

Calculate compressed hydrogen tank volume, weight, energy content, and storage densities for different tank types.

Inputs

Results

Tank Volume

212.54 liters

≈ 11 buckets

Tank Weight (empty)127.52 kg
Energy Content166.65 kWh
Volumetric Density0.02 kg/L
Gravimetric Density3.77%
How to Use This Calculator
  1. Enter Hydrogen Mass (kg), Storage Pressure (bar), and Temperature (°C).
  2. Set Tank Type.
  3. Review the Tank Volume (liters) result.
  4. Use Tank Weight (empty) (kg) and Energy Content (kWh) to inform your decision.
  5. Use the chart to visualize the results and explore different scenarios by adjusting inputs.

How the result changes with Hydrogen Mass (kg)

Hydrogen Mass (kg)Tank Volume
1,00042,508.09 liters
3,500148,778.33 liters
6,500276,302.61 liters
9,000382,572.85 liters

What each input means

Hydrogen Mass (kg)
Amount of hydrogen to store in kilograms.
Storage Pressure (bar)
Tank operating pressure. Common: 350 bar (vehicles), 700 bar (passenger cars).
Temperature (°C)
Ambient or operating temperature in Celsius.
Tank Type
1 = Type I (steel), 2 = Type III (aluminum/composite), 3 = Type IV (carbon fiber).

What each result means

Gravimetric Density
Weight percentage of hydrogen relative to total system weight.

How this is calculated

Worked example, using the default values

  1. Identify Input Parameters
    4 parameters
    Hydrogen Mass (kg) = 5, Storage Pressure (bar) = 350, Temperature (°C) = 25, Tank Type = 2 = 4 input(s) provided
  2. Calculate Tank Volume
    Tank Volume
    212.54 = 212.54
  3. Calculate Tank Weight
    Tank Weight
    127.52 = 127.52
  4. Calculate Energy Content
    Energy Content
    166.65 = 166.65

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