Rent Increase Calculator
Use this rent increase calculator to see how a proposed rent change affects your monthly budget and yearly housing cost.
Measure the effect of a rent increase
Your result
How this calculator helps
A small monthly rent increase can feel modest at first but still add up meaningfully over a year.
This calculator works from either the new rent amount or a percent increase so you can evaluate renewal offers quickly.
How the math works
New rent is either entered directly or calculated from current rent × (1 + increase percent).
Monthly increase = new rent - current rent.
Annual increase = monthly increase × comparison months.
Worked examples
Dollar increase
A renewal offer states the exact new monthly rent.
- • Current rent and new rent entered
The calculator shows the monthly and annual difference directly.
Percent increase
A renter only knows the percentage increase.
- • Current rent and percent entered
The new rent is computed automatically.
Bigger renewal jump
The rent increase is large enough to change affordability.
- • Percent change above 10%
The affordability note signals that the change may deserve a broader budget review.
Frequently asked questions
Related tools
See the new rent inside your full monthly budget.
Check whether the new rent still fits your income.
Compare another option when a renewal becomes too expensive.
Estimate another lease-related housing cost.
Important note
Rent increase rules vary by city, building type, lease structure, and local law. This tool estimates impact, not legality.