Best Practice Media · Free marketing tools

PPC Budget Calculator

Work backward from a new-customer goal using CPC, lead conversion, qualification and close rates. Compare the required media budget with your available spend and include management costs.

Build your scenario.

All starting values are illustrative examples. Replace them with your own figures. USD is used throughout.

01 · Customer goal and funnel assumptions
Customers acquired from this modeled funnel—not leads, repeat orders or all company customers.
Use a matched paid-search history or a researched CPC assumption. This is not your bid.
The percentage of ad clicks producing a lead. Use deduplicated leads for the same scope.
Share of those leads meeting your sales qualification criteria.
Share of qualified leads becoming new customers. Allow for your sales-cycle delay.
02 · Available spend and other costs
Media spend only. Used to show the customer scenario at your current budget.
Acquisition allocation of agency or management fees. Excluded from platform media spend.
Acquisition labor, creative, software or other costs not counted in management fees.

No signup required. These calculators process your entries in your browser; the calculator does not send or save your input values.

How to calculate a PPC budget.

For a lead-generation funnel, divide the desired new-customer count by the click-to-lead, lead-qualification and qualified-lead close rates to find the clicks needed. Multiply those clicks by CPC to model media spend. Enter percentages as percentages: 5 means 5%, while the formula uses 0.05.

Required clicks = customer goal ÷ (lead rate × qualification rate × close rate), rounded up.
Media budget = required clicks × average CPC.
Included planning budget = media budget + management fees + other acquisition costs.

A worked example

A goal of 10 new customers, $5 CPC, 5% click-to-lead rate, 50% qualification and 20% close rate needs 2,000 clicks. That is $10,000 in media, or $11,500 including $1,000 management and $500 other acquisition costs. At $5,000 media spend, the same assumptions give 1,000 clicks, 50 leads, 25 qualified leads and 5 customers. These are illustrative arithmetic scenarios.

Google explains average daily budgets using a 30.4-day monthly equivalent. Daily delivery can vary, and platform spending limits and campaign settings still apply. This tool does not change an advertising account.

Start with a consistent funnel

Use the same campaign scope and customer definition across the rates. Do not multiply a qualification rate from one channel by a close rate from a different sales motion. Separate lead capture from qualification and sales, and account for lag between the click and the sale.

Use a purchase funnel when it fits

For direct ecommerce purchases, use the click-to-purchase rate in the click-to-lead field and set qualification and close rates to 100%. Treat the goal as new customers only if the purchases are from new customers. For an order goal, label it as orders in your own planning notes; repeat orders do not establish customer acquisition.

Test assumptions before committing budget

Higher spend can change CPC, traffic quality and conversion rates. This model holds them constant. It does not estimate available search demand, impression share, incrementality, customer value or cash-flow payback. Validate the assumptions with campaign results and customer records before scaling.

Does this tell me the right Google Ads budget?

It calculates the media spend required under your entered assumptions. It does not establish available demand, auction prices or a profitable budget. Use it to compare scenarios and identify which assumptions need evidence.

What if a funnel rate is zero?

No finite media budget can deliver a positive customer goal through a stage with a zero rate in this model. The goal budget and related undefined costs are labeled accordingly; the available-budget funnel still shows its arithmetic.

Is the daily number a spending cap?

No. It is the monthly goal media budget divided by 30.4 for a Google Ads average-daily equivalent. Individual daily spend can vary. Check platform rules and your campaign settings separately.

Why include fees separately?

Media goes to the advertising platform; management and other acquisition costs affect the total investment. Keep allocations consistent and avoid counting the same cost twice. Use the CAC calculator for a fuller acquisition-cost view.

Why do customer scenarios have decimals?

Expected counts under fixed rates can be fractional. A result such as 4.5 is a planning expectation, not half a real customer or a guaranteed outcome. The clicks required for the positive goal are rounded up.

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