Free conversion rate calculator
Your conversion rate is the percentage of visitors who take the action you want — buy, sign up, enquire. This free tool — built by a Singapore marketing agency — calculates your conversion rate instantly, and (with an order value) shows revenue, revenue per visitor, and a what-if: how many extra conversions and dollars you’d gain by hitting a target rate at the same traffic. It runs entirely in your browser.
How to calculate conversion rate
The formula is simple: conversion rate = (conversions ÷ visitors) × 100. If 240 of 8,000 visitors buy, that’s a 3% conversion rate. “Conversions” and “visitors” can be whatever pair you’re measuring — purchases per session, leads per click, sign-ups per landing-page view. Just be consistent about what counts as a conversion and what counts as a visitor, and measure both over the same period.
What’s a good conversion rate?
It varies enormously by industry, channel, traffic quality and what you’re asking people to do. E-commerce often sits around 1–3%; lead-gen landing pages can run much higher; high-consideration B2B much lower. Rather than chase a generic benchmark, track your own rate over time and focus on improving it. The most useful number here is often revenue per visitor — it combines conversion rate and order value into the single figure that tells you what each visit is truly worth, and the maximum you can profitably pay to acquire one.
Why small CR gains are worth so much
Because conversion rate multiplies against your entire traffic volume, small improvements compound into large revenue. Lifting an 8,000-visitor page from 3% to 4% conversion adds 80 conversions a month — with no extra ad spend. That’s the core case for conversion rate optimisation: it makes every existing visitor more valuable, which is almost always cheaper than buying more traffic. Use the target field above to model exactly what a rate improvement is worth to you, then see the full journey with our sales funnel calculator.
Segment before you celebrate or panic
A single blended conversion rate hides more than it reveals. The same site can run at 5% on branded search, 2% on organic blog traffic and 0.6% on a cold display campaign — averaging them into one number tells you almost nothing actionable. Always break the figure down by channel, device and landing page before drawing conclusions. Mobile very often converts at half the desktop rate, and a “falling” overall rate is frequently just a shift in traffic mix rather than a page that suddenly stopped working.
Match the conversion you measure to the length of your buying cycle, too. For an e-commerce store, a purchase is the right metric. For a considered B2B service in Singapore, a form fill or qualified enquiry is the honest measure of the page’s job — the sale happens weeks later over email and a call. Tracking only final revenue on a long sales cycle makes good landing pages look broken. Our B2B marketing team tends to optimise around lead quality, not just lead volume.
Reaching statistical significance before you act
The most expensive conversion mistake is trusting small numbers. A page with 40 visitors and 4 conversions reads as a 10% rate, but the true figure could plausibly be anywhere from 3% to 24% — not enough certainty to bet a budget on. Before declaring a winner in an A/B test or killing a “low” performer, make sure each variant has accumulated enough conversions (not just clicks) for the difference to be reliable, which for typical rates means hundreds of conversions rather than dozens.
Remember that conversion rate and traffic quality move together. Pouring more visitors onto a page won’t lift the rate if the new traffic is less qualified — often it drops it. The compounding wins come from the multiplier effect: a page earning £10 revenue per visitor at 2% becomes far more valuable at 2.6%, and that same uplift applies to every visitor you already pay to acquire. That’s why improving the page frequently beats buying more ad traffic, and why we pair rate optimisation with traffic growth rather than treating them separately.
Frequently asked questions
How do I calculate conversion rate?
Divide the number of conversions by the number of visitors and multiply by 100. For example, 50 sales from 2,000 visitors is a 2.5% conversion rate. This tool does it automatically and adds revenue metrics.
What counts as a conversion?
Any action you’ve defined as a goal: a purchase, a form submission, a call, a sign-up, a download. The key is to be consistent — pick your conversion event and your visitor definition and measure both over the same window.
What is revenue per visitor?
Total revenue divided by total visitors — it blends conversion rate and average order value into one figure. It’s especially useful for deciding how much you can afford to spend acquiring a visitor while staying profitable.
How can I improve my conversion rate?
Common levers include clearer value propositions, faster pages, stronger calls to action, social proof, simpler forms, and better traffic targeting. Test changes one at a time and validate them with our A/B test significance calculator before rolling them out.
How much traffic do I need for a reliable conversion rate?
Enough to gather a meaningful number of conversions, not just visits. As a rough guide, wait for at least a few hundred conversions per variant before trusting a comparison; with only a handful, normal random variation can swing the rate wildly and lead you to act on noise. Low-traffic pages are best judged over longer windows.
Should I optimise for conversion rate or total conversions?
Total conversions and, ultimately, revenue are what pay the bills — conversion rate is a diagnostic that tells you how efficiently traffic converts. A tactic that raises the rate but shrinks total volume (say, aggressive qualification that turns away buyers) can be a net loss. Watch both together, and weight decisions towards the metric closest to actual revenue.
