# SEO Organic Conversion Rate Calculator

> Calculate the conversion rate of organic search traffic as conversions divided by organic sessions, plus revenue per session and per conversion.

Category: Marketing analytics · Applies to: Worldwide · Last updated: 2026-10-29
Interactive calculator: https://calculators.geekmidst.com/calculators/seo-organic-conversion-calculator

Organic conversion rate is the conversions from organic search divided by organic search sessions, times 100.

Also called: SEO conversion rate calculator.

## Inputs
- Organic sessions (default 8000)
- Conversions from those sessions (default 120)
- Organic revenue (default 9600; optional)
- Currency

## Results
- Organic conversion rate
- Sessions per conversion
- Revenue per organic session
- Revenue per conversion

## Formula

```
Conversion rate = Conversions ÷ Organic sessions × 100;  Revenue per session = Revenue ÷ Sessions;  Revenue per conversion = Revenue ÷ Conversions
```

Where:
- Organic sessions: sessions from organic search (the denominator)
- Conversions: goal completions or orders in those sessions

## Worked example
1. Conversion rate = 120 ÷ 8,000 × 100 = 1.5%.
2. Revenue per session = 9,600 ÷ 8,000 = $1.20.
3. Revenue per conversion = 9,600 ÷ 120 = $80.

**Result:** 120 conversions from 8,000 organic sessions is a 1.5% conversion rate, worth $1.20 per session.

## What the result means

Revenue per session lets you compare organic search with paid channels: it is roughly the most you could pay per click for the same traffic and break even on revenue.

## Assumptions and limits
- Sessions and conversions use the same date range and attribution.
- Analytics tools differ in whether a session can count more than one conversion; check how yours counts before comparing.

## Questions

### Sessions or users?

Either works if you state it. Session-based rates are lower because one user can have several sessions.

## Related calculators
- [SEO Traffic Opportunity Calculator](https://calculators.geekmidst.com/calculators/seo-traffic-opportunity-calculator)
- [Landing Page Revenue Per Visitor Calculator](https://calculators.geekmidst.com/calculators/landing-page-revenue-per-visitor-calculator)
- [Lead to Customer Conversion Calculator](https://calculators.geekmidst.com/calculators/lead-to-customer-conversion-calculator)
- [Percentage Calculator](https://calculators.geekmidst.com/calculators/percentage-calculator)

Source: GM¹X CalcVerse — https://calculators.geekmidst.com/calculators/seo-organic-conversion-calculator