Everyday
Fuel cost
Fuel cost: use journey distance, fuel consumption, fuel price. Review the formula, worked example and calculation steps.
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522 calculatorsEcology calculators.
Understand energy, resources and environmental quantities.
Browse the ecology category subset →14 calculators · Star a calculator to find it in Favorites.
Everyday
Fuel economy & gas mileage
Fuel economy & gas mileage: use distance driven, fuel used. Review the formula, worked example and calculation steps.
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Electricity use & cost
Electricity use & cost: use appliance power, hours used per day, number of days. Review the formula, worked example and calculation steps.
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Electricity bill estimate
Electricity bill estimate: use load, hours per day, days. Review the formula, worked example and calculation steps.
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Energy consumption
Energy consumption: use power, hours per day, days. Review the formula, worked example and calculation steps.
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Solar panel energy
Solar panel energy: use array rated power, peak sun hours per day, system performance ratio. Review the formula, worked example and calculation steps.
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Required solar capacity
Required solar capacity: use daily energy target, peak sun hours, performance ratio. Review the formula, worked example and calculation steps.
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Hydroelectric power
Hydroelectric power: use flow rate, net head, efficiency. Review the formula, worked example and calculation steps.
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Wind power
Wind power: use rotor diameter, wind speed, air density. Review the formula, worked example and calculation steps.
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Daily water demand
Daily water demand: use people, supplied demand per person. Review the formula, worked example and calculation steps.
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Dripping faucet water loss
Dripping faucet water loss: use drops per minute, average drop volume. Review the formula, worked example and calculation steps.
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Emissions from activity
Emissions from activity: use activity quantity, supplied emissions factor. Review the formula, worked example and calculation steps.
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Shannon diversity index
Shannon diversity index: use species counts, logarithm base. Review the formula, worked example and calculation steps.
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Simpson diversity · 1−Σp²
Simpson diversity · 1−Σp²: use species counts. Review the formula, worked example and calculation steps.
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