---
title: "Rent vs Buy Calculator"
method: POST
path: "/api/v1/tools/rent-vs-buy-calculator"
tags: ["home"]
---

# Rent vs Buy Calculator

`POST /api/v1/tools/rent-vs-buy-calculator`

## Request

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

Compare renting vs buying over any timeline. See which builds more wealth, when break-even hits, and how appreciation and rent increases tip the balance.

## Request body

- object
  - `monthlyRent` number, required
  - `homePrice` number, required
  - `downPaymentPct` number, required
  - `mortgageRatePct` number, required
  - `mortgageTermYears` integer, required
  - `horizonYears` integer, required
  - `homeAppreciationPct` number, required
  - `rentIncreasePct` number, required
  - `maintenancePctAnnual` number, required
  - `buyClosingCostsPct` number, required
  - `sellCostsPct` number, required
  - `investmentReturnPct` number, 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)