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sci.ecological-footprint Calculator
Calculates ecological footprint in global hectares from consumption data (food, energy, transport, goods, services) and biocapacity to assess sustainability. World average ecological footprint ≈ 2.8 gha/person vs biocapacity of 1.7 gha/person — Earth Overshoot Day falls earlier each year as overshoot grows.
Inputs
Food Kg Yr
Reference formula or conversion factor shown for context.
Transport Km Yr
Reference formula or conversion factor shown for context.
Home Kwh Yr
Capacity to do work (J or kWh). Conserved — converts between forms but total stays constant in a closed system.
Flights Hr Yr
Reference formula or conversion factor shown for context.
Results
ecological footprint (gha/year)
Sample size or count used in the calculation.
food footprint (gha)
Sample size or count used in the calculation.
transport footprint (gha)
Sample size or count used in the calculation.
energy footprint (gha)
Sample size or count used in the calculation.
flight footprint (gha)
Sample size or count used in the calculation.
Earth biocapacity
Reference formula or conversion factor shown for context.