Ad Budget Allocation Calculator
Split budget across channels by efficiency.
Reviewed by James Whitfield · How we check our maths
Your values
ⓘ Live results
Results
- Best channel
- Projected revenue
- $111,512.20
- Blended ROAS
- 5.58×
- Budget allocated
- $20,000.00
| Channel | Share | Budget | Revenue |
|---|---|---|---|
| Search | 25.6% | $5,121.95 | $21,512.20 |
| Social | 17.1% | $3,414.63 | $9,560.98 |
| Display | 8.5% | $1,707.32 | $2,390.24 |
| 48.8% | $9,756.10 | $78,048.78 |
Quick answer
Efficient allocation puts more budget into channels with higher proven ROAS.
The formula
Channel share = ROAS ÷ ΣROAS
Worked example
Worked example
Using the values the calculator loads with.
Inputs
- Monthly budget20000 $
- Search ROAS4.2
- Social ROAS2.8
- Display ROAS1.4
- Email ROAS8
Result
- Best channelEmail
- Projected revenue$111,512.20
- Blended ROAS5.58×
- Budget allocated$20,000.00
How to use the Ad Budget Allocation Calculator
- 1Enter your total monthly ad budget.
- 2Enter measured ROAS for each channel.
- 3Reallocate towards the strongest performers.
Frequently asked questions
Should I put everything in the best channel?
No — channels saturate, so weighted allocation beats all-in.
How often should I rebalance?
Monthly, using at least 30 days of data.
About this calculator
- Built and reviewed by James Whitfield · How we build and test calculators
- Report an error