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CPA Calculator — Cost per Acquisition

Calculate cost per acquisition from ad spend and number of acquisitions. Optional revenue per acquisition and ROAS.

Use the CPA Calculator — Cost per Acquisition

Enter total ad spend and number of acquisitions. Optionally add revenue per acquisition for ROAS.

Spend & outcomes

Total ad spend and number of acquisitions (sales or leads).

Results

CPA
$50

CPA = Total spend ÷ Acquisitions. Lower CPA is better if quality is consistent. Use revenue per acquisition to see whether CPA is justified by value.

What this metric means

CPA is how much you spend to get one acquisition. It’s a core paid-acquisition metric; use it with conversion volume and value to judge efficiency.

How to improve

Improve targeting, creative, and landing experience to raise conversion rate. Negotiate or test channels and placements to lower cost per click or impression.

FAQs

What counts as an acquisition?▾
Whatever you optimise for: a sale, a lead, a signup. Be consistent so CPA is comparable across campaigns and periods.
How do I use revenue per acquisition?▾
Enter it to see total revenue from those acquisitions and a simple ROAS (revenue ÷ spend). It helps judge whether CPA is justified by value.
What’s a good CPA?▾
It depends on LTV and margin. CPA should be low enough that you can recover it from the customer’s value (e.g. gross margin) within an acceptable payback period.

Related tools

Browse all calculators on NetGrow.

NetGrow

CPA Calculator — Cost per Acquisition

Calculate cost per acquisition from ad spend and number of acquisitions. Optional revenue per acquisition and ROAS.

Use the CPA Calculator — Cost per Acquisition

Enter total ad spend and number of acquisitions. Optionally add revenue per acquisition for ROAS.

Spend & outcomes

Total ad spend and number of acquisitions (sales or leads).

Results

CPA
$50

CPA = Total spend ÷ Acquisitions. Lower CPA is better if quality is consistent. Use revenue per acquisition to see whether CPA is justified by value.

What this metric means

CPA is how much you spend to get one acquisition. It’s a core paid-acquisition metric; use it with conversion volume and value to judge efficiency.

How to improve

Improve targeting, creative, and landing experience to raise conversion rate. Negotiate or test channels and placements to lower cost per click or impression.

FAQs

What counts as an acquisition?▾
Whatever you optimise for: a sale, a lead, a signup. Be consistent so CPA is comparable across campaigns and periods.
How do I use revenue per acquisition?▾
Enter it to see total revenue from those acquisitions and a simple ROAS (revenue ÷ spend). It helps judge whether CPA is justified by value.
What’s a good CPA?▾
It depends on LTV and margin. CPA should be low enough that you can recover it from the customer’s value (e.g. gross margin) within an acceptable payback period.

Related tools

Browse all calculators on NetGrow.