ForHosting KIT · Finance & money

Gross rent multiplier (GRM)

Divide a property's price by its annual gross rent to get its gross rent multiplier: 300,000 for a property that rents for 24,000 a year gives a GRM of 12.5. A quick way to compare rental listings. Free in your browser.

Free
Runs in your browser
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Run — free How it works & API

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Worked example

If you enter

Price: 300,000
Annual rent: 24,000
Decimal places: 4

You get

Grm: 12.5

Compute Gross Rent Multiplier = price / annual gross rent. Search intent: gross rent multiplier. No network calls, no random seeds, and no server state are required for a correct answer. Failed jobs are not billed. Landings target

What the gross rent multiplier tells you

The gross rent multiplier, or GRM, compares what a rental property costs with the rent it brings in. It is a single division: the price divided by the annual gross rent, meaning the yearly rent before any expenses are taken off. A property priced at 300,000 that rents for 24,000 a year has a GRM of 12.5, so its price equals twelve and a half years of current gross rent. Because it needs only two figures, it is easy to work out for several listings and set them side by side. The result is rounded once, to the decimals you choose.

Avoiding the usual slips

Use annual rent, not monthly: a monthly figure makes the multiplier twelve times too large. Use gross rent, not rent after costs, or the number will not be comparable with others worked out the usual way. Remember what the GRM leaves out: expenses, vacancies and financing are not part of it, so two properties with the same multiplier can still leave you with different amounts. Treat it as a first filter and compare properties on the same basis, with the same kind of rent figure for each.

When to use it

Use when the search intent matches this tool. Compute Gross Rent Multiplier = price / annual gross rent. No network calls, no random seeds, and no server state are required for a correct answer.

Failed jobs are not billed. Landings target the stated search intent with precise keywords. Prefer explicit units and ranges over silent coercion of bad types.

When a field is optional, defaults are documented in params and echoed in the output.

FAQ

Locales?

EN-only delivery; Nitro hydrates the other seven languages.

What does a GRM of 12.5 mean?

It means the price equals 12.5 years of gross rent at the current level. For the same rent, a lower multiplier means paying less for each unit of yearly rent, and a higher one means paying more.

Should I enter monthly or annual rent?

Annual gross rent. If you only know the monthly rent, multiply it by twelve first; entering a monthly figure would make the multiplier twelve times too large.

Does the GRM account for operating expenses?

No. It uses gross rent, the rent before any expenses, so two properties with the same GRM can leave you with different amounts once costs are paid.

How do I get from a GRM back to a price?

Multiply the annual gross rent by the multiplier. With 24,000 of yearly rent and a GRM of 12.5, the price comes back to 300,000. The calculator itself works the other way, from price and rent to the multiplier.

Related tools

For developers — API access

Everything on this page is available programmatically. This section is for teams who want to wire it into their own systems; everyone else can just use the tool above.

API endpoint

POSThttps://api.kit.forhosting.com/finance/gross-rent-multiplier

Prefer to automate it? One authenticated POST creates the task; the result comes back by webhook or a signed link. The same capability also runs here on the web, by email and from Telegram — and soon from our app too.

Call it from your stack

curl -X POST https://api.kit.forhosting.com/finance/gross-rent-multiplier \
  -H "Authorization: Bearer $KIT_KEY" \
  -H "Content-Type: application/json" \
  -d '{"price":300000,"annual_rent":24000}'

const res = await fetch("https://api.kit.forhosting.com/finance/gross-rent-multiplier", {
  method: "POST",
  headers: {
    "Authorization": `Bearer ${process.env.KIT_KEY}`,
    "Content-Type": "application/json"
  },
  body: JSON.stringify({
    "price": 300000,
    "annual_rent": 24000
  })
});
const { task_id } = await res.json();

import os, requests

res = requests.post(
    "https://api.kit.forhosting.com/finance/gross-rent-multiplier",
    headers={"Authorization": f"Bearer {os.environ['KIT_KEY']}"},
    json={
    "price": 300000,
    "annual_rent": 24000
},
)
task_id = res.json()["task_id"]

<?php
$res = file_get_contents("https://api.kit.forhosting.com/finance/gross-rent-multiplier", false, stream_context_create([
  "http" => [
    "method"  => "POST",
    "header"  => "Authorization: Bearer " . getenv("KIT_KEY") . "\r\nContent-Type: application/json",
    "content" => '{"price":300000,"annual_rent":24000}',
  ],
]));
$task = json_decode($res, true);

body := bytes.NewBufferString(`{"price":300000,"annual_rent":24000}`)
req, _ := http.NewRequest("POST", "https://api.kit.forhosting.com/finance/gross-rent-multiplier", body)
req.Header.Set("Authorization", "Bearer "+os.Getenv("KIT_KEY"))
req.Header.Set("Content-Type", "application/json")
res, _ := http.DefaultClient.Do(req)

Example request

{
  "price": 300000,
  "annual_rent": 24000
}

Example response

{
  "task_id": "tsk_a1b2c3d4e5f6a1b2c3d4e5f6",
  "type": "finance.gross_rent_multiplier",
  "status": "queued",
  "_links": {
    "result": "/tasks/tsk_…/result"
  }
}

The API is asynchronous: the call returns a task_id immediately and the result arrives by webhook. Polling is capped at 1 req/s per task.

Pricing

Per request$0.002

Published price — no tokens, no invented credits. A failed task is never charged.

Errors

HTTP	Code	Meaning
`401`	`unauthorized`	Missing or invalid API key.
`402`	`insufficient_balance`	Your balance doesn't cover the task price.
`404`	`unknown_type`	That task type doesn't exist.
`429`	`rate_limited`	Too many requests. Use the webhook instead of polling.

Technical notes

The calculator is free in the browser, deterministic, and identical in the API path. Inputs are validated before any arithmetic so invalid payloads fail with invalid_input. Half-up rounding is applied once from raw IEEE results when decimals are requested. Use the same JSON contract from spreadsheets, CMS hooks, automation, or teaching demos.

How it works

Compute Gross Rent Multiplier = price / annual gross rent. No network calls, no random seeds, and no server state are required for a correct answer. Failed jobs are not billed. Landings target the stated search intent with precise keywords. Prefer explicit units and ranges over silent coercion of bad types. When a field is optional, defaults are documented in params and echoed in the output. GRM = price / annual_rent. The calculator is free in the browser, deterministic, and identical in the API path. Inputs are validated before any arithmetic so invalid payloads fail with invalid_input. Half-up rounding is applied once from raw IEEE results when decimals are requested. Use the same JSON contract from spreadsheets, CMS hooks, automation, or teaching demos.

Inputs, limits and rounding

Outputs echo inputs for logging. No network calls, no random seeds, and no server state are required for a correct answer. Failed jobs are not billed. Landings target the stated search intent with precise keywords. Prefer explicit units and ranges over silent coercion of bad types. When a field is optional, defaults are documented in params and echoed in the output. Provide required JSON fields. Optional decimals use half-up once from raw IEEE values. Invalid types or ranges raise invalid_input. The calculator is free in the browser, deterministic, and identical in the API path. Inputs are validated before any arithmetic so invalid payloads fail with invalid_input. Half-up rounding is applied once from raw IEEE results when decimals are requested. Use the same JSON contract from spreadsheets, CMS hooks, automation, or teaching demos.

When to use it

Integration use cases

Quick check

Use the free widget to verify a formula before production.

Automation

Call the API with the same JSON contract from scripts or CMS.

Teaching

Show pinned golden examples without proprietary software.

Technical questions

Is the browser widget free?

Yes. Tier A is free client-side with the same core as the API.

Does it use the network?

No. Computation is local and deterministic.

What on bad input?

invalid_input is thrown; failed jobs are not billed.

API compatible?

Yes — same JSON fields as params.json.

Read the full KIT documentation →

Run — free

Worked example

What the gross rent multiplier tells you

Avoiding the usual slips

When to use it

FAQ

Related tools

For developers — API access

API endpoint

Call it from your stack

Example request

Example response

Pricing

Errors

Technical notes

How it works

Inputs, limits and rounding

When to use it

Integration use cases

Quick check

Automation

Teaching

Technical questions

thank you