Ad Budget Split Calculator

Split a total budget across channels by weight and see the spend and share each one receives.

About Ad Budget Split Calculator

Weights are normalised by their own total, so they do not have to add to 100 — you can express relative priorities and the split still allocates the full budget. Normalising rather than requiring weights to sum to 100 means reallocating between channels never accidentally leaves budget unassigned.

Formula

Ad Budget Split

Channel budget = total × channel weight ÷ sum of weights

weight: Relative priority of a channel; weights need not sum to 100

Worked example

With the default values below, Ad Budget Split Calculator returns Paid Search Budget of $70,000.00. Change any input above and every figure here is recalculated in your browser.

Inputs used

Total budgetminimum 0: 200,000
Weight given to paid searchaccepts 0–100 %: 35 %
Weight given to paid socialaccepts 0–100 %: 30 %
Weight given to display and videoaccepts 0–100 %: 20 %
Weight given to everything elseaccepts 0–100 %: 15 %

Results

Paid Search Budget: $70,000.00
Paid Social Budget: $60,000.00
Display and Video Budget: $40,000.00
Other Channels Budget: $30,000.00
Total Weight Entered: 100.0

Step by step

1Values used
2Ad Budget Split
3Paid Search Budget= 70,000.00
4Paid Social Budget= 60,000.00
5Display and Video Budget= 40,000.00
6Other Channels Budget= 30,000.00
7Total Weight Entered= 100.0

Assumptions and limits

The result is derived only from the 5 inputs listed above. Anything not among them is not part of the calculation.
In particular, this calculator does not take inflation, tax, fees or charges or compounding frequency into account.
Figures are rounded for display to 2 decimal places, so totals built from several rounded parts can differ slightly from the unrounded arithmetic.
This is an estimate for general information and not professional financial, tax or legal advice. See the full disclaimer for the limits that apply to this kind of calculator.

How these calculators are built and tested is described on the Methodology page. If a figure looks wrong, please report it.

Frequently Asked Questions

How is Ad Budget Split calculated?

Channel budget = total × channel weight ÷ sum of weights Weights are normalised by their own total, so they do not have to add to 100 — you can express relative priorities and the split still allocates the full budget.

Why does Ad Budget Split matter?

Normalising rather than requiring weights to sum to 100 means reallocating between channels never accidentally leaves budget unassigned.

What values do I need to enter?

This calculator takes 5 inputs: Total budget, Weight given to paid search, Weight given to paid social, Weight given to display and video, Weight given to everything else. The pre-filled defaults are a realistic starting point — replace them with figures from your own environment for a result you can act on.