Prorate Calculator
Calculate prorated amounts
Frequently Asked Questions
What does prorate mean?
Prorate means to divide or distribute proportionally. If you use a service for part of a billing period, you pay only for the portion used. The formula is: Prorated Amount = Total × (Used Period / Full Period).
How do I calculate a prorated monthly bill?
Prorated bill = Monthly Rate × (Days Used / Days in Month). If your monthly rent is $1,500 and you move in on the 11th of a 30-day month: $1,500 × (20/30) = $1,000 for that month.
How is prorated rent calculated?
Daily rate = Monthly Rent / Days in Month. Prorated rent = Daily Rate × Days Occupied. For $2,000/month rent, moving in March 15: daily rate = $2,000/31 = $64.52. Prorated = $64.52 × 17 = $1,096.77.
How do subscription services handle proration?
Most SaaS services prorate when you upgrade or downgrade mid-cycle. Upgrading from $10/month to $20/month halfway through: you get a credit of $5 (unused portion) and are charged $10 (remaining portion at new rate), net charge $5.
Is proration the same as pro rata?
Yes, they mean the same thing. "Pro rata" is the Latin term meaning "in proportion." "Prorate" is the English verb form. Both refer to proportional allocation based on time, usage, or another measurable factor.