---
title: "Puppy Adult Weight Predictor"
method: POST
path: "/api/v1/tools/puppy-weight-calculator"
tags: ["pet"]
---

# Puppy Adult Weight Predictor

`POST /api/v1/tools/puppy-weight-calculator`

## Request

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

Predict your puppy adult weight from its current weight and age in weeks, with a size-class note. Enter the numbers to see the grown-up size to expect.

## Request body

- object
  - `currentWeightKg` number, required
  - `ageWeeks` number, required
  - `sizeClass` 'small' | 'medium' | 'large'

## 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)