Rent calculator
By Sam Kane · Last checked 11 October 2026
This rent calculator converts a rent between weekly (pw), monthly (pcm), every four weeks and yearly. Adverts and tenancy agreements do not all use the same period, so the same home can look cheaper or dearer than it is. Enter your rent, choose the period it is for, and click “Convert my rent” to see every other figure. If you share the home, you can split the rent and see your own share.
How the rent calculator works
The calculator turns the rent into a yearly figure first, then divides it:
| From | To get the yearly rent |
|---|---|
| Per week (pw) | Multiply by 52 |
| Every 4 weeks | Multiply by 13 |
| Per calendar month (pcm) | Multiply by 12 |
Then it divides the yearly rent by 52 for a week, 13 for four weeks, 12 for a month and 365 for a day.
Example: £250 pw × 52 = £13,000 a year. £13,000 ÷ 12 = £1,083.33 pcm. If you multiply £250 by 4, you get £1,000, which is £83.33 a month too low. Our guide to what pcm means explains why in more detail.
Monthly rent and four-weekly rent are not the same
Some landlords, councils and housing associations charge rent every 4 weeks, not every month. A year has 13 four-week periods, so you make 13 payments, not 12.
Example: £1,000 every 4 weeks is £13,000 a year. That is £1,083.33 a month, not £1,000. If you budget by the month, use the monthly figure from the calculator.
Splitting the rent
If you share a home, choose “Yes, equally” and enter how many people pay. The calculator shows the rent for the whole home and each person’s equal share.
Student adverts often show rent “pppw”, which means per person per week. That figure is already one person’s share. Enter it as a weekly rent and choose “No, I pay it all” to see your own monthly cost.
An equal split is the simplest choice, but it is not the only one. Some housemates pay more for a larger room. Agree the split in writing before you move in. If you have a joint tenancy, each person can be responsible for the whole rent if someone else does not pay.
Rent for part of a month
The “per day” figure is the yearly rent divided by 365. You may need it when a tenancy starts or ends part of the way through a rent period. Your tenancy agreement may set its own way to work out rent for part of a period, so check it first. If there is a difference, the agreement applies.
Why the weekly figure matters
In England, deposits are set in weeks of rent. A holding deposit can be no more than 1 week’s rent. A tenancy deposit can be no more than 5 weeks’ rent when the yearly rent is under £50,000. Use the weekly figure from the calculator to check that you are not asked for too much.
The monthly figure helps you set a budget. Our rent affordability calculator shows what rent is comfortable on your pay.
While you rent, your rent can also work for you. Rent reporting can add your rent payments to your Experian, Equifax and TransUnion credit files.
Common questions
How do I convert pw to pcm?
Multiply the weekly rent by 52, then divide by 12. For example, £200 pw is £866.67 pcm.
How do I convert pcm to pw?
Multiply the monthly rent by 12, then divide by 52. For example, £1,200 pcm is £276.92 pw.
Why is weekly rent times 4 wrong?
A month is about 4.33 weeks, not 4. Times 4 leaves out about 4 weeks of rent each year.
How much is rent every 4 weeks in a month?
Multiply the four-weekly rent by 13, then divide by 12. For example, £1,000 every 4 weeks is £1,083.33 a month.
How do I work out my share of the rent?
Divide the rent for the whole home by the number of people who pay. The calculator does this for you when you choose “Yes, equally”.
Does the calculator save what I type?
No. The calculator works in your browser. We do not save or send the rent you enter.