Amazon PPC budget calculator.
Work backwards from your goal. Set target ad sales and ACOS to size the budget, clicks, and orders you need.
Get a free audit ↗Budget = target ad sales x target ACOS. Clicks and orders are modeled from your CPC and conversion rate.
Budget follows the goal, not a guess.
Your ad budget is simply your target ad sales times the ACOS you are willing to pay. From there, your CPC and conversion rate tell you how many clicks and orders that budget should produce.
Check it against margin
Only spend up to your break-even ACOS on established products. Confirm the ceiling with the break-even ACOS calculator.
CPC is rising
Amazon CPCs have climbed above a dollar in many categories, and Q4 spikes. Rerun this as your real CPC moves.
Work backwards from the orders you want.
Say you want 150 ad-attributed orders a month. At a 10% conversion rate that takes 1,500 clicks, and at a $1.20 average CPC those clicks cost $1,800 a month, about $60 a day. Those three inputs, orders, conversion rate and CPC, are the entire budget conversation.
The same math exposes the real lever: lift conversion to 12.5% and the same 150 orders need only 1,200 clicks, cutting the budget to $1,440 without touching a bid. Budget problems are usually conversion problems wearing a disguise.
How much should I spend on Amazon PPC?
Enough to hit your sales goal at or below your break-even ACOS. This tool sizes it: target ad sales times target ACOS equals your monthly budget.
What is a good starting ACOS?
Launches often run 40 to 50 percent to buy rank; established products target 15 to 25 percent. Never exceed your break-even ACOS on a mature product.
How do I lower my ad budget without losing sales?
Improve conversion rate and target tighter keywords so each dollar returns more, rather than cutting bids and losing rank.
How should I split budget across campaign types?
A common starting shape puts the majority into exact-match campaigns on proven terms, a smaller share into broad and auto for discovery, and a defensive slice on your own brand terms. Rebalance monthly toward whatever produces profitable orders.
When is it right to raise the budget?
When campaigns cap out on budget while running under your ACOS ceiling, more spend buys profitable orders you were turning away. If ACOS already sits at the ceiling, more budget just buys the same problem in bulk.
Estimates for planning only. Verify current Amazon fees in Seller Central; results depend on your inputs.
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