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How-to guide

How to Calculate 1% Rule: Formula, Steps & Examples

Learn how to calculate 1% Rule — the formula explained step by step, with worked examples and a free calculator to check your answer.

By Aarav Mehta, CFA, MBA Finance · Updated Jun 2026 · 2 min read

Calculating your target monthly rent (1%) is straightforward once you know the 1% Rule formula and what each input means. This guide explains the method in plain language, walks through a manual calculation, and gives worked examples you can follow — then you can do it instantly with the 1% Rule Calculator.

What is 1% Rule?

The 1% Rule calculation tells you your target monthly rent (1%) from a few simple inputs. The figure you are solving for here is the target monthly rent (1%), expressed in INR.

The 1% Rule formula

The core formula is:

Target monthly rent (1%) = Property purchase price × 0.01

Here is what each input means:

  • Property purchase price — a money amount. Example: ₹50,00,000.

How to calculate it step by step

  • Write down the property purchase price (for example, ₹50,00,000).
  • Apply the formula above to get your target monthly rent (1%).
  • Double-check the result with the 1% Rule Calculator.

Worked examples

Example 1

Input / OutputValue
Property purchase price₹50,00,000
Target monthly rent (1%)₹50,000

With property purchase price of ₹50,00,000, the target monthly rent (1%) works out to ₹50,000.

Example 2

With property purchase price of ₹1,00,00,000, the target monthly rent (1%) works out to ₹1,00,000.

ResultValue
Target monthly rent (1%)₹1,00,000

Example 3

With property purchase price of ₹25,00,000, the target monthly rent (1%) works out to ₹25,000.

ResultValue
Target monthly rent (1%)₹25,000

Tips for an accurate result

  • Keep your units consistent — mixing, say, months with years or grams with kilograms is the most common source of error.
  • Round only at the very end. Rounding inputs early can shift the final answer noticeably.
  • Re-run the numbers whenever an input changes, rather than estimating from an old result.
  • Annual rates must be converted to the period you are calculating for (for example, divide an annual rate by 12 for a monthly figure).

Prefer not to do the maths by hand? — the 1% Rule Calculator does it instantly, for free, with the formula and a worked example built in.

Continue exploring real estate calculators with these tools: Down Payment Percentage Calculator, Property Management Fee Calculator, Stamp Duty Calculator, Real Estate Commission Calculator, Price Per Acre Calculator.

Calculators in this guide

Frequently asked questions

The formula is: Target monthly rent (1%) = Property purchase price × 0.01. With property purchase price of ₹50,00,000, the target monthly rent (1%) works out to ₹50,000.

Gather each input, apply the formula step by step keeping your units consistent, and round only at the end. You can verify your answer instantly with the 1% Rule Calculator.

It uses the standard formula with exact arithmetic, so the result is correct for the inputs you enter. Bear in mind that real-world outcomes can still differ when underlying assumptions change.

The target monthly rent (1%) is expressed in INR. Make sure your inputs use matching units so the result is correct.

Aarav Mehta · CFA, MBA Finance

Aarav reviews every finance formula on CalcHub for accuracy.