Rent Increase Calculator

The rent increase calculator turns a percentage into the numbers that actually matter: what your new monthly rent will be, how much more you pay per year, and where rent lands after several years of the same increase compounding.

It also compares your increase against general consumer price inflation. That comparison is the useful part. A 5% increase in a year when inflation is running at 3% is a real-terms rent rise; the same 5% in a year when inflation is 6% is a real-terms cut. Landlords and tenants often argue about the headline percentage when the meaningful question is how it sits against prevailing inflation.

Use it to check a renewal offer, budget for next year, or work out what a multi-year lease escalation clause really costs you.

A single increase is straightforward:

For example, $1,800 with a 5% increase becomes $1,800 × 1.05 = $1,890 a month — $90 more per month, or $1,080 more over a year.

Compounding Over Several Years

Repeated increases compound, which is where the number gets away from people:

That same $1,800 rising 5% a year reaches $2,297 after five years and $2,932 after ten — a 63% increase in a decade, not 50%. The gap between those two figures is compounding.

Percentage From Two Rent Figures

If you know the old and new rent but not the percentage:

A rise from $1,800 to $1,950 is (150 ÷ 1,800) × 100 = 8.33%.

There is no single national answer, but there are useful reference points.

• General inflation has averaged roughly 3% a year in the US since 1913, measured by the Consumer Price Index. Rent that rises faster than this is getting more expensive in real terms.
• Shelter is a CPI component in its own right. The Bureau of Labor Statistics publishes a separate shelter index, which has often run above the headline rate. Checking that index is the closest thing to a "normal" rent increase benchmark.
• Local law may cap it. Several jurisdictions limit annual increases, frequently tied to a CPI measure plus a fixed percentage, with a hard ceiling. Caps and their formulas vary widely and change, so verify the current rule for your specific city and state.

Rent Increases in Historical Perspective

To see what rent levels from earlier decades translate to in today's money, the historical inflation pages convert any amount using recorded CPI data. Comparing a 1970 rent to today's is an inflation question rather than a rent-increase question — the two calculations answer different things.

Source for inflation and shelter data: U.S. Bureau of Labor Statistics, Consumer Price Index.

• It reframes the negotiation. "This is above the current inflation rate" is a more concrete position than "this feels like a lot."
• It separates real from nominal. A large increase in a high-inflation year may be smaller in real terms than a modest one in a flat year.
• It exposes compounding. Multi-year lease escalations look small annually and large in total.
• Privacy: all calculations run in your browser — nothing is sent to a server.