Free tools

Free AI footprint calculators

How much energy does a prompt use? How much water? What changes if the data center is in France or in Poland? Each calculator below answers one question with published figures, and tells you where they come from.

01AI carbon footprint calculatorEstimate the CO2 emissions of your ChatGPT, Claude or Gemini use per day and per year, based on published energy figures and the electricity grid of the data center.
02ChatGPT energy use calculatorSee how much electricity your ChatGPT prompts use per day, month and year, with everyday comparisons like phone charges and LED bulb hours.
03AI water footprint calculatorEstimate how much water your AI prompts consume, using the figures published by Google, OpenAI and the Mistral life cycle analysis.
04AI image generation carbon calculatorEstimate the energy and CO2 of the images you generate with AI. One image uses about as much energy as nine text prompts.
05AI vs Google search energy comparisonCompare the energy of asking an AI assistant with a classic web search, and see what changes over a year when you move part of your searches to AI.
06AI token counter and energy estimatorPaste any text to estimate its token count and the energy an AI model would need to write it.
07How many trees absorb your AI use?Convert the yearly CO2 of your AI prompts and images into the number of trees needed to absorb it in a year.
08Company AI carbon footprint calculatorEstimate the yearly energy and CO2 of AI assistant use across your team or company, for a sustainability report or an internal policy.
09AI energy in everyday equivalentsTurn any number of AI prompts into minutes of streaming, LED bulb time, phone charges and car distance.
10AI carbon footprint by countryThe same AI prompt emits nearly 30 times more CO2 depending on the country that hosts the data center. Compare eleven electricity grids.