---
title: "TDEE Calculator: Daily Calorie Needs"
method: POST
path: "/api/v1/tools/tdee-calculator"
tags: ["fitness"]
---

# TDEE Calculator: Daily Calorie Needs

`POST /api/v1/tools/tdee-calculator`

## Request

- Base URL: `https://calcfleet.com`
- URL: `https://calcfleet.com/api/v1/tools/tdee-calculator`
- Auth: none declared

Calculate your Total Daily Energy Expenditure (TDEE) using the Mifflin-St Jeor formula. Find your daily calorie needs for fat loss, maintenance, or muscle gain.

## Request body

- object
  - `sex` 'male' | 'female', required
  - `age` integer, required
  - `heightCm` number, required
  - `weightKg` number, required
  - `activity` 'sedentary' | 'light' | 'moderate' | 'active' | 'veryActive', required
  - `goal` 'maintain' | 'cutting' | 'bulking', required

## Response `200`

Successful calculation result.

- object
  - `result` object, required: Structured calculation output (fields vary per calculator).

## Other responses

- `400`: Invalid input — the issues array contains Zod validation errors.
- `403`: Forbidden — an Authorization: Bearer cf_… key was supplied but is invalid.
- `404`: Unknown tool slug.

---

[API](https://skmtc.dev/calcfleet/apis/calcfleet-financial-calculators-api.md) · [All operations](https://skmtc.dev/calcfleet/apis/calcfleet-financial-calculators-api/llms.txt) · [OpenAPI document](https://skmtc.dev/calcfleet/apis/calcfleet-financial-calculators-api/revisions/cd9abd595bbe?raw)