# Gross Rent Multiplier Calculator (GRM)

URL: https://speedycalculator.com/calculators/finance/gross-rent-multiplier/
Last updated: 2026-10-25

> The gross rent multiplier calculator divides a property's price by its annual gross rent to give the GRM – a quick way to compare rental properties – and the value implied by a market GRM.

## Inputs

- Property price
- Gross rental income (per month, per year)
- Market GRM for comparison

## Results

- Gross rent multiplier
- Gross annual rent
- Value at the market GRM

## Formula

```
GRM = property price ÷ gross annual rent
Value = market GRM × gross annual rent
```

## Explanation

GRM is a rough screening tool: lower is better (you pay less per dollar of rent). It ignores vacancies and expenses, so use the cap rate for a fuller picture. GRMs of 4–7 are often considered attractive.

### How to use the Gross Rent Multiplier Calculator

- **Property price**
- **Gross rental income**
- **Market GRM for comparison**

Results update as you type, and every field accepts the units shown in its menu.

### How it works

Enter the property price and the gross rent (monthly or annual), and a typical GRM for the area.

### Tips

- Get a written loan estimate and compare the APR, not just the interest rate.
- Include property tax, insurance, HOA fees and maintenance in your monthly budget.
- A larger down payment lowers the payment and can remove mortgage insurance.
- Rates change daily – use a current quote for the most accurate result.

### Common mistakes to avoid

- Looking only at the monthly payment instead of the total cost of the loan.
- Forgetting closing costs and fees.
- Assuming home prices always rise.

### Inputs explained

FieldWhat to enterProperty priceAmount in your currencyGross rental incomeUnits: per month, per yearMarket GRM for comparisonA number

### What each result means

- **Gross rent multiplier** = [Property price]÷[Gross rental income]
- **Value at the market GRM** = [Market GRM for comparison]×[Gross rental income]

### Example values

How the main result changes when **Property price** changes and everything else stays at the example values above:

Property priceGross rent multiplier300,0005.56450,0008.33600,00011.11750,00013.89900,00016.671,200,00022.22

## Worked example

Inputs — Property price: $600,000; Gross rental income: $4,500 per month; Market GRM for comparison: 10.

Results — **Gross rent multiplier = 11.11**; Gross annual rent = $54,000.00; Value at the market GRM = $540,000.00.

## FAQ

**What is a good GRM?**
Lower is better; 4–7 is often considered good, but it varies by market.

**How is GRM different from cap rate?**
GRM uses gross rent and ignores expenses; cap rate uses NOI.

**Should I use monthly or annual rent?**
Annual is standard – this calculator converts monthly rent.

**What formula does the Gross Rent Multiplier Calculator use?**
GRM = property price ÷ gross annual rent.