Ecology calculators
Footprints, diversity indices, and tree carbon estimates.
8 calculators
Carbon Footprint Calculator
Estimate annual household CO₂e from electricity, driving, and flights to identify the activities that most change your personal emissions estimate.
Carbon Offset Travel Cost Estimator
Estimate trip CO₂e from distance and an emissions factor, then express the total as a simple one-year tree-equivalent comparison. Use the calculator above.
Ecological Footprint Calculator
Turn diet, home-energy, and travel impact ratings into a transparent global-hectare style score for discussing lifestyle trade-offs and priorities.
Solar Panel Array Efficiency Calculator
Estimate annual solar-array generation from panel wattage, panel count, peak sun hours, and system efficiency before a site-specific design or quote.
Tree Carbon Sequestration Calculator
Estimate stored tree carbon from trunk diameter at breast height using a simplified allometric relationship that emphasizes how quickly larger trunks matter.
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Calculate Simpson’s D and 1 − D from up to five species counts to summarize both richness and evenness in a sampled community. Use the calculator above.
Water Pollutant Dilution Calculator
Use a one-point mass balance to estimate pollutant concentration after an effluent stream completely mixes with a receiving river stream.
Wind Turbine Power Output Estimator
Estimate instantaneous rotor power from blade radius, wind speed, air density, and power coefficient to show why wind speed dominates output.