ConverterHub

Rent Increase Calculator

Calculate your new rent after a percent increase

How it is calculated

The tool applies a single percentage to your current monthly rent: monthly increase = rent × pct ÷ 100, new rent = rent + monthly increase, and annual increase = monthly increase × 12. Rent is a monthly amount in dollars and pct is the percentage the landlord proposes. Rent must be above zero and the percentage cannot be negative, so a rent cut is not calculated. The tool does not know any local cap on increases, notice period, or whether utilities are included; it only does the arithmetic on the figures you enter, so check your own area's rules separately.

Worked example

Current rent is 1,450 a month and the landlord announces a 6% increase. Step 1: 1,450 × 6 ÷ 100 = 87.00, the monthly increase, shown as $87.00. Step 2: new rent = 1,450 + 87 = $1,537.00. Step 3: over twelve months the extra cost is 87 × 12 = $1,044.00.

Try this example →

Common mistakes

  • Entering the new rent in the current-rent field, which compounds the increase on top of itself.
  • Typing the increase as a dollar amount instead of a percentage; 87 in the percentage field means an 87% rise.
  • Forgetting that the annual figure assumes the new rent applies for all 12 months, so a mid-year increase costs less in that year.
  • Entering a decrease as a negative percentage; the tool returns no result for it.
  • Comparing percentages across leases with different rents; a small percentage on a high rent can be a larger dollar jump.

About this calculator

The math is a straightforward percentage increase: new rent = current rent × (1 + increase% / 100). The calculator also reports the flat dollar increase per month and multiplies that by 12 to show the added cost over a full year — the number that actually hits a household budget.

Tenants use it the moment a renewal notice arrives to gauge whether an increase is in line with local rent-control caps or typical market adjustments (often 3-5% annually in many U.S. cities), while landlords and property managers use the same formula to model revenue when setting new lease terms across a building or portfolio.

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