Finance

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CPC, CPM, and CTR Calculator.

Calculate cost per click, cost per thousand impressions, and click-through rate.

On-device calculationNo signup
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Set your values

Results update as you type.

Cost per click: $0.50

Cost per click

$0.50
CPM: $5.00

CPM

$5.00
Click-through rate: 1.00%

Click-through rate

1.00%

Calculations use the inputs shown and update automatically as you edit them.

FAQs

How is CPC, CPM, and CTR calculated?

Use the same campaign definitions for spend, clicks, and impressions.

Cite this calculator

Canonical URL: https://mathify.one/zh/finance/cpc-cpm

Cite as: Mathify. (2026). 计算器: CPC, CPM, and CTR. https://mathify.one/zh/finance/cpc-cpm

Use Cases

Evaluate Ad Campaign Efficiency

Use the calculator to quickly determine your CPC, CPM, and CTR from your campaign data, helping you assess performance and compare with industry benchmarks.

Example: Enter total spend and clicks to see if your CPC is within budget.

Plan Advertising Budget

Estimate the cost of reaching a target audience by calculating CPM, or project clicks based on expected CTR to allocate your budget effectively.

Example: Set a target CTR and see how many clicks you might get for a given spend.

Frequently Asked Questions

What is the difference between CPC, CPM, and CTR?
CPC (cost per click) is the amount you pay each time someone clicks your ad. CPM (cost per thousand impressions) is the cost for 1,000 ad views. CTR (click-through rate) is the percentage of people who click your ad after seeing it.
How do I calculate CPC?
Divide the total cost of your campaign by the number of clicks. For example, if you spend $100 and get 50 clicks, your CPC is $2.00.
How do I calculate CPM?
Divide the total cost by the number of impressions, then multiply by 1,000. For instance, if you spend $50 for 10,000 impressions, your CPM is $5.00.

Tips & Common Mistakes

Tips

  • Ensure you use the same time period for all metrics to get accurate comparisons.
  • Track your CTR over time to identify trends and optimize ad creative.
  • Compare your CPC and CPM with industry averages to gauge competitiveness.
  • Use the calculator to test different scenarios before launching a campaign.

Common Mistakes to Avoid

  • Confusing impressions with clicks when calculating CPM or CTR.
  • Using inconsistent units (e.g., mixing dollars and cents) without converting.
  • Forgetting that CTR is a percentage, not a decimal, when interpreting results.

Last updated: August 13, 2026