Subscription Cost Calculator

To work out what your subscriptions cost, convert them all to the same period first. Multiply weekly by 52, monthly by 12 and quarterly by 4 to get an annual figure, then divide by 12 for the monthly average. This calculator does that, and then does the part most tools skip: it shows which month the annual renewals actually land in, because that is usually where the trouble is.

How to do it yourself

1. 1

   List everything that renews

   Streaming, software, storage, memberships, domains, insurance. Check last year of statements for the annual ones, since those are the easiest to forget.

2. 2

   Record the amount and the billing period

   Enter the amount as charged, and pick weekly, monthly, quarterly or yearly. Do not convert anything yourself.

3. 3

   Set the renewal month for annual and quarterly ones

   This is the part generic calculators skip. It decides which month takes the hit, and that is usually the useful output.

4. 4

   Read the annual total, then look at the shape

   The total tells you what to cut. The month-by-month view tells you what to move, which is often the easier change to make.

The annual total is the easy number

Every subscription calculator will tell you what your subscriptions cost a year. It is a useful number and it is not the one that causes problems.

Take three annual subscriptions of 300 each. The total is 900 a year, which averages a harmless-looking 75 a month. If all three renew in January, January costs you 900 and the other eleven months cost nothing. The average was accurate and completely misleading.

That is why this calculator asks for the renewal month. Spread those same three renewals across January, May and September and the worst month drops from 900 to 300, without cancelling anything or spending a penny less over the year.

Moving beats cancelling

Cancelling a subscription is a decision about whether you want the thing. Moving one is not, and it is usually the cheaper change to make. Most providers will let you switch your renewal date, or you can let one lapse and restart it a month later.

Subscriptions are also the most movable bills you have. Rent and loan payments are fixed. A software renewal is not. When you need a few days of breathing room, this is the part of your outgoings that will actually bend.

Monthly or annual billing

Annual billing is usually ten to twenty percent cheaper per month, so on cost alone it is the better deal. On cash flow it can be worse, because it turns a small predictable payment into a large single one.

Which matters more depends on whether you have a buffer that absorbs the lump. Paying somewhat more overall to keep payments small is a perfectly reasonable trade when the alternative is an overdraft, and the overdraft usually costs more than the discount was worth.

Common questions

How do I work out what my subscriptions cost?

Convert every subscription to the same period before adding them up. Multiply weekly by 52, monthly by 12, and quarterly by 4 to get an annual figure, then divide the total by 12 for a monthly average. Mixing periods is what makes people underestimate the total, because a 280 annual charge feels smaller than 23 a month even though they are the same thing.

Why does the month my subscription renews in matter?

Because an annual renewal is not spread over the year, it leaves in one payment on one day. Three annual renewals in the same month can be several hundred pounds landing at once, while the annual average suggests a comfortable monthly figure. If that month is also a quiet one for income, the average has hidden the only number that mattered.

Is it better to pay monthly or annually?

Annual billing is usually cheaper per month, often by ten to twenty percent, so on cost alone it wins. On cash flow it can be worse, because it converts a small predictable payment into a large single one. Which matters more depends on whether you have a buffer that can absorb the lump. Paying more overall to keep payments small is a reasonable trade when the alternative is an overdraft.

What counts as a subscription?

Anything that renews without you deciding again: streaming, software, cloud storage, memberships, insurance paid monthly, mobile contracts, domains and hosting. The ones people forget are the annual ones, precisely because they only appear once a year and never prompt a decision.

Do I need to connect a bank account?

No. It runs entirely on figures you type in. There is no account, no signup, no bank connection and no Plaid link. The numbers stay in the page address so you can bookmark the result and come back to it.

Last reviewed 5 September 2026. Something wrong on this page? How we handle corrections.