Marketing & Growth Calculators

The metrics performance marketers check every day — ad efficiency, conversion, and experiment significance. All 7 calculators run entirely in your browser. No sign-up. Nothing leaves your device.

7 free calculators

Ad Performance

Measure how efficiently your ad spend turns into clicks, impressions, and customers.

ROAS Calculator

Calculate Return on Ad Spend (ROAS) from revenue and advertising cost.
CPA Calculator

Calculate Cost Per Acquisition (CPA) from ad spend and the number of conversions.
CPC Calculator

Calculate cost per click (CPC) from ad spend and the number of clicks.
CPM Calculator

Calculate CPM (cost per thousand impressions) from ad spend and impressions.
CTR Calculator

Calculate click-through rate (CTR) from clicks and impressions.

Conversion & Testing

Track funnel conversion and validate experiments with statistical rigor.

Conversion Rate Calculator

Calculate conversion rate from visitors and conversions, and see the revenue impact of small rate improvements.
A/B Test Significance Calculator

Test whether the difference between two conversion rates is statistically significant. Computes p-value and confidence level.

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