# Calculators for food and training

Source: https://nume.co.in/tools/ · Checked on 12 November 2026

Four calculators, each with the number it gives, where that number comes from and how it is worked out. They run in your browser, and nothing you type is sent anywhere.

- [BMI calculator](/tools/bmi-calculator/): your body mass index, its WHO adult category and the weight range WHO calls normal for your height.
- [Calorie calculator](/tools/calorie-calculator/): the daily energy Nume plans for you to lose body fat, maintain or build muscle.
- [Protein calculator](/tools/protein-calculator/): a daily protein range from your weight, and what it comes to at each of the times you eat.
- [Water intake calculator](/tools/water-intake-calculator/): how much water a day the European and US reference values give, and how much to drink after a session.

## Use them in ChatGPT, Claude and other assistants

The four calculators are also an MCP server, so an assistant can run them with your numbers and get the same answer as these pages. Add this address as a custom connector in Claude, in ChatGPT's developer mode, in Cursor or in any other app that takes an MCP server:

`https://nume.co.in/mcp`

No sign-in is needed. The assistant sends only the inputs a calculator needs, and Nume doesn't keep them.

## Related

- [Is my diet or workout plan right? Five checks](/check-my-plan/)
- [What Nume is and how it works](/how-it-works/)