CPA Calculator
Calculate what each customer, order or lead costs you in ads, or work out the budget you need to reach a conversion goal at your CPA.
- Free, no sign-up
- Solve for CPA, spend or conversions
- Formula with your numbers
CPA = ad spend ÷ conversions
CPA
$65.00
CPA = $2,600.00 ÷ 40 = $65.00
- CPA
- $65.00
- Ad spend
- $2,600.00
- Conversions
- 40
Median cost per lead: $66.69 · yours is 3% lower
Source: WordStream 2026, 13,474 US search campaigns, April 2025 – March 2026.
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Average Google Ads cost per lead by industry (2026)
Across US search campaigns on Google and Microsoft Ads, the median cost per lead was $66.69. The report measures cost per lead, a conversion that hasn't yet become a sale. To compare with a cost per customer, divide by the share of leads you close. Use your industry's figure as a reference point, not a target: offer, location and account setup move these numbers a lot.
| Industry | Median cost per lead | Chart |
|---|---|---|
| All industries | $66.69 | |
| Animals & Pets | $31.50 | |
| Apparel / Fashion & Jewelry | $97.51 | |
| Arts & Entertainment | $26.84 | |
| Attorneys & Legal Services | $131.63 | |
| Automotive — For Sale | $44.26 | |
| Automotive — Repair, Service & Parts | $29.96 | |
| Beauty & Personal Care | $39.25 | |
| Business Services | $93.69 | |
| Career & Employment | $67.36 | |
| Dentists & Dental Services | $72.97 | |
| Education & Instruction | $77.48 | |
| Finance & Insurance | $74.44 | |
| Furniture | $106.70 | |
| Health & Fitness | $67.36 | |
| Home & Home Improvement | $90.92 | |
| Industrial & Commercial | $75.19 | |
| Personal Services | $54.60 | |
| Physicians & Surgeons | $40.04 | |
| Real Estate | $102.51 | |
| Restaurants & Food | $30.57 | |
| Shopping, Collectibles & Gifts | $49.40 | |
| Sports & Recreation | $44.26 | |
| Travel | $44.70 |
Source: WordStream by LocaliQ, Google Ads Benchmarks 2026, 13,474 US search campaigns, April 2025 – March 2026. The report labels these averages, but they are medians. For comparison, the median cost per purchase for e-commerce brands on Meta Ads was $38.99 (Triple Whale, Aug 2025 – Jul 2026).
How to calculate CPA
Cost per acquisition is what you spend on ads for each conversion: a sale, a customer, a lead or a booking:
CPA = ad spend ÷ conversions
$1,500 in ads that brought 40 customers is a $37.50 CPA. For planning:
- Budget for a goal: spend = CPA × conversions. 50 new customers at $45 each needs $2,250.
- Conversions a budget buys: conversions = spend ÷ CPA. $3,000 at a $60 CPA brings about 50.
What a good CPA is: break-even first
A CPA is only good or bad next to what a customer is worth to you:
Break-even CPA = average order value × gross margin × orders per customer
If an order is $80, your margin is 40% and customers buy once, each one brings $32 of gross profit. A CPA above $32 loses money. If they typically order three times, the ceiling rises to $96, as long as you're sure they come back.
Set your target CPA comfortably below break-even to leave room for profit. Our ROAS calculator works out both from your margin.
CPA, CPL and CAC
- CPA is the cost of whatever you count as a conversion.
- CPL (cost per lead) is a CPA where the conversion is an inquiry, not yet a sale. To get the cost per customer, divide CPL by the share of leads you close.
- CAC (customer acquisition cost) usually covers all sales and marketing costs, including salaries, tools and agency fees, not only ad spend.
Target CPA bidding in Google Ads
With Target CPA bidding, Google sets bids for each auction to get as many conversions as possible at around your target. A few things help it work:
- Accurate tracking. It optimizes toward what it sees. Count real conversions only, without duplicates.
- Enough data. It needs a steady flow of conversions to learn.
- Realistic targets. Start near your recent CPA. A target set far below it limits volume, because the system bids lower and wins fewer auctions.
How to lower CPA
CPA has two levers: CPA = CPC ÷ conversion rate.
- Pay less per click: better Quality Score, negative keywords, more specific keywords. See the CPC calculator.
- Convert more of the clicks: relevant landing pages, shorter forms, faster mobile pages, clear offers. See the conversion rate calculator.
- Stop spending where nothing converts: search terms, placements, audiences, devices and hours with spend and no results.
- Check the definition. Make sure the conversion you optimize for is the one that makes money, not a cheaper step before it.
CPA FAQ
CPA = ad spend ÷ conversions. If $1,500 of ads brought 40 customers, CPA is $37.50. To plan a budget, flip it: spend = target CPA × conversions you want.
CPA counts whatever you define as a conversion. CPL (cost per lead) is a CPA where the conversion is a lead, not yet a sale. CAC (customer acquisition cost) usually includes all sales and marketing costs, not just ad spend, divided by new customers.
One below your break-even CPA: the gross profit a customer brings. If an order is worth $80 and your margin is 40%, anything under $32 per order makes money. Our ROAS calculator shows break-even and target CPA from your numbers. For reference, the median cost per lead in US Google search campaigns was $66.69 in WordStream's 2026 benchmarks.
CPA = CPC ÷ conversion rate, so either pay less per click or convert more of them. Cut search terms and placements that never convert, improve the landing page, and make sure conversion tracking counts real conversions only.
Get a free ads audit
A calculator tells you where you stand. We'll show you why: targeting, search terms, tracking, bidding and landing pages, with a list of what to cut and what to scale.