A budget planner answers a capacity question: given a spend envelope and an average CPC (or CPM), how many clicks or impressions can you buy, and what conversion volume follows if your rate holds?

Monthly budget ÷ days ≈ daily budget. Daily clicks ≈ daily budget ÷ CPC. Expected conversions apply your conversion rate. The worksheet is only as good as the averages you enter from historical reports or a conservative forecast.

Once capacity looks realistic, open the CPC ROI calculator with the same CPC and conversion assumptions to check whether revenue covers spend. Affiliate partners should model commissions separately.