Ecological Footprint Calculator
Estimate the resources your lifestyle uses and your personal Overshoot Day
Calculators
Perform specialized calculations using defined inputs, formulas, and outputs for practical or technical questions.
TerraMaster
Choose network or direct-attached storage for personal and business files
Zoopla
UK property listings, sold prices and home estimates
GeoGebra
Interactive graphing, geometry, and classroom math activities
TurboTax
Guided US tax preparation with optional expert assistance
Calcbot
A calculator and unit converter for iOS
Numi
Write calculations alongside natural language notes
Giki
Understand your footprint and plan climate actions
Desmos
Interactive math, graphing, and geometry tools