Calculators

Calculates the Shannon Diversity Index (H') to quantify species diversity in a community. The index considers both the number of species and the evenness of their distribution.

Simulates the population dynamics of a predator-prey system using the Lotka-Volterra equations. This model helps visualize how the populations of predators and prey change over time based on their interactions.

Assesses the ecological, social, and economic sustainability of the Olympic Games, providing insights into its environmental impact, social benefits, and economic viability.

This calculator helps to understand the impact of different global plastic policies on various aspects of the plastic lifecycle, including production, waste generation, recycling rates, and environmental pollution.

This calculator estimates wind speed based on the angle of a windsock. It uses the Beaufort scale to provide a general description of the wind conditions.

Estimates the volume of water a pond will hold, the surface area, and the required liner size, based on pond dimensions.

Estimates the weight of a fish based on its length and girth measurements.

Calculates the potential CO₂ concentration in a room based on the number of people, room volume, and ventilation rate.

This calculator estimates the environmental footprint of different hand drying methods in a public restroom, helping you make informed choices. It considers factors like energy consumption, paper usage, and associated emissions.

Estimates your COVID-related plastic pollution and suggests ways to minimize it.