How do I calculate CPA?

CPA (cost per acquisition) is spend ÷ conversions. If you spend $3,000 and get 60 conversions, your CPA is $50 — the cost of acquiring one result.

How do I calculate CPL?

CPL (cost per lead) is spend ÷ leads. If you spend $3,000 and generate 150 leads, your CPL is $20 — the cost of acquiring one prospect such as a demo request or inquiry.

What is the difference between CPA and CPL?

CPL is the cost of one lead (a prospect), while CPA is the cost of one conversion (a sale or sign-up). CPL is an upper-funnel metric and CPA a lower-funnel one; roughly, CPL ÷ lead-to-customer rate ≈ CPA.

Can I break the numbers down by channel?

Yes. Enter spend, conversions, and leads per channel (Google, Meta, LinkedIn, and so on) in the channel table, and the tool computes CPA/CPL for each channel plus a blended CPA/CPL across all channels.

What is blended CPA / CPL?

Blended CPA/CPL is total spend divided by total conversions/leads across every channel. Because it sums spend and results before dividing — rather than averaging per-channel rates — it reflects your actual budget mix.

Is my data sent to a server?

No. Every calculation runs entirely in your browser. Your numbers are never uploaded or stored on a server.

Yes, it is completely free. No sign-up and no installation required.

CPA / CPL calculator

Calculators

Enter spend with conversions and leads to compute CPA and CPL, with an optional per-channel split and blended CPA/CPL. Everything runs in your browser; your data is never uploaded.

What is this CPA / CPL calculator?

A free, browser-based calculator that turns spend, conversions, and leads into your two core acquisition costs: CPA (cost per acquisition) and CPL (cost per lead). Enter one set of totals for a quick answer, or switch on channel split to enter each channel separately and see CPA/CPL per channel plus a blended CPA/CPL across your whole mix. Each result shows the exact formula, and everything runs locally in your browser, so your numbers are never uploaded.

The formulas

CPA = Spend ÷ Conversions (cost per acquired customer or sale).
CPL = Spend ÷ Leads (cost per acquired lead).
Blended CPA = Σ Spend ÷ Σ Conversions across all channels.
Blended CPL = Σ Spend ÷ Σ Leads across all channels.

How to use it

Enter total spend, plus conversions and/or leads on the left.
Read CPA and CPL on the right — each shows the formula used.
Turn on “Split by channel” to add per-channel rows and see a blended CPA/CPL.

Common use cases

Checking CPA against your target before scaling a campaign.
Comparing CPL across channels to reallocate lead-gen budget.
Reporting a single blended CPA/CPL across all paid channels.

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FAQ

Operated by

Tools by Timothe AI is a suite of free tools built and operated by unbounded pioneering inc, the company behind Timothe AI.

Ryosuke SuzukiFounder & CEO

Founder & CEO of Unbounded Pioneering Inc., the company behind Timothe AI, and an expert in machine learning and AI product development. He began his career in machine learning research at a university laboratory, then designed and built large-scale products as a software engineer at PLAID, Rakuten, and Recruit, while also driving new business development. Now specializing in generative AI and AI products, he works across both engineering and business development, and is a named inventor on multiple granted patents in web technology.

Named inventor on granted patents JP6887648 & JP7480958 · Patent pending on Timothe AI technology

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