/ Marketing

Conversion Rate Calculator

Optimism is not a strategy.

Conversion rate is the share of visitors who take the action you want: conversions divided by visitors, times 100. Four sales from 400 visitors is a 1% conversion rate. This calculator runs the whole paid funnel too, turning ad budget into clicks, leads, and sales, so you can see whether the projected revenue beats the spend before you launch.

How it's calculated

Conversion rate = conversions / visitors x 100. The funnel projection then chains four steps:

  • Traffic = budget / CPC
  • Leads = traffic x LP conversion %
  • Sales = leads x sales conversion %
  • Revenue = sales x price

Worked examples

Visitors Conversions Conversion rate
400 4 1%
1,000 25 2.5%
500 20 4%
2,000 100 5%

How it works

Start with your Ad Budget.

Factor in CPC to get Traffic.

Apply Conversion Rates (LP & Sales).

See if the Revenue covers the spend.

Why it matters

You assume $1,000 will get you sales. But if your CPC is $5 and your conversion rate is 1%, you will get zero sales.

Run the math before you run the ads.

The Math

Traffic = Budget / CPC
Leads = Traffic × LP Conv %
Sales = Leads × Sales Conv %
Revenue = Sales × Price

Ad Budget
€
CPC: €
Traffic (Clicks)
400
LP Conv: %
Leads
80
Sales Conv: %
Sales
4
Price: €
PROJECTED REVENUE €800
LOSS

Questions people ask

How do you calculate conversion rate?

Divide conversions by visitors and multiply by 100. If 8 of 400 visitors buy, that is 8 / 400 x 100 = 2%. A conversion is whatever action you count: a purchase, a signup, a lead form, a download. Keep the numerator and denominator over the same time window and traffic source, or the number lies to you.

What is a good conversion rate?

It depends on the offer, price, and traffic quality, but 2% to 5% is common for many websites and lead forms. High-intent traffic and low-friction actions can run well above that; cold traffic to an expensive product runs below. The only fair benchmark is your own past performance, so measure, change one thing, and compare.

What is conversion rate optimization?

Conversion rate optimization (CRO) is the practice of getting more conversions from the visitors you already have, instead of buying more traffic. You improve the page, the offer, the copy, and the flow, then run A/B tests to prove a change actually lifts the rate. It is usually cheaper than raising your ad budget.