$tackedHow to turn weekly, yearly and quarterly bills into a monthly number
To get a monthly number: multiply a weekly amount by 52 and divide by 12, multiply a bi-weekly amount by 26 and divide by 12, multiply a quarterly amount by 4 and divide by 12, and divide a yearly amount by 12.
The formulas, with examples
| How often | Formula | Example | Per month |
|---|---|---|---|
| Weekly | Amount × 52 ÷ 12 | $60 | $260 |
| Bi-weekly | Amount × 26 ÷ 12 | $120 | $260 |
| Quarterly | Amount × 4 ÷ 12 | $150 | $50 |
| Twice a year | Amount × 2 ÷ 12 | $300 | $50 |
| Yearly | Amount ÷ 12 | $600 | $50 |
Why weekly isn't times 4
A month is a little longer than four weeks. A $60 weekly cost times 4 is $240, but over a full year it averages $260. That $20 gap shows up in your budget every month.
Plan for big yearly bills
A $600 yearly bill can feel like a surprise if you only see it once. Setting aside its $50 monthly share gives you the money when the bill comes due.
Let the app do the math
Add your income and expenses once, and $tacked turns them into a clear monthly picture. Free on iPhone and Android.
Get $tackedQuestions
How many weeks are in a month for budgeting?
Use 52 weeks divided by 12 months, which is about 4.33 weeks per month.
Should I include yearly bills in a monthly budget?
Including their monthly share gives a truer picture of what you spend. Divide the yearly amount by 12.
Related guides
- How to budget with a bi-weekly paycheck
- Fixed vs. variable expenses: what is the difference?
- Replacing your budget spreadsheet: what to actually track
- How to see where your money goes each month
This guide is general information, not financial advice. The numbers are examples.