Email CTR Calculator
Email CTR hides a denominator trap no other channel has: 'click-through rate' in email is measured against delivered emails, but the click decision happens only among the people who opened. That second ratio — clicks divided by opens, called click-to-open rate or CTOR — is the one that separates 'nobody opened it' from 'nobody clicked once they did'. The first is a subject-line and deliverability problem; the second is a content and offer problem. Treating one as the other wastes campaigns.
Measure a send below — 210 clicks from 9,000 delivered is a 2.3% click rate — then read where the two rates diverge and what healthy ranges look like per send type.
For email: emails delivered. For organic: Google search views.
Click-through rate
2.33%
23.3 clicks per 1,000 impressions.
- Impressions per click
- 42.9
How many views it takes, on average, to earn one click.
Typical ranges worth anchoring to: paid search roughly 2-6%, display well under 1%, email click rates 1-5% of delivered, and organic results falling steeply from the top positions. CTR is a diagnosis, not a goal — a curiosity-bait headline can raise it while conversions fall.
Starting values are set for a typical email scenario — change any field to match yours. Need the plain version? CTR Calculator.
One send, two rates
The same campaign read against both denominators — 9,000 delivered, 2,700 opens, 210 clicks:
| Metric | Formula | Value | Diagnoses |
|---|---|---|---|
| Click rate (CTR) | Clicks ÷ delivered | 2.33% | Overall performance |
| Open rate | Opens ÷ delivered | 30% | Subject line, sender, deliverability |
| Click-to-open rate | Clicks ÷ opens | 7.8% | Content, offer, CTA — inside the email |
What healthy looks like, by send type
- Newsletters to a warm opted-in list commonly click in the low single digits of delivered — and CTOR in the high single digits of opens.
- Transactional and highly segmented sends (receipts, renewal notices, cart follow-ups) click at multiples of newsletter rates because intent is specific.
- Cold or purchased lists click near zero — and damage deliverability for every other send from the same domain. The fix is upstream of any CTR lever.
- Trend beats benchmark: your list, your cadence, your audience. A newsletter falling from its own 3% to 1.8% over six sends has a real problem no industry table changes.
Levers, split by which rate is broken
- Open-rate levers: sender name consistency, subject-line specificity, send-time testing, list hygiene (sunset disengaged subscribers), authenticated sending domain.
- CTOR levers: one primary CTA instead of five, link placement above the fold preview, message-to-landing-page match, and offer clarity — the email's job is a click, not a sale.
- Apple Mail privacy protection inflates opens by pre-fetching images, which quietly corrupts open-based segments — CTOR (clicks are real events) is the sturdier metric to steer by.
- A/B discipline: test one variable per send, on a list large enough to matter; tiny list A/B tests read tea leaves.
Frequently asked questions
- What is the difference between email CTR and CTOR?
- CTR divides clicks by delivered emails; CTOR (click-to-open rate) divides clicks by opens. CTR answers 'how did the whole send perform'; CTOR answers 'of the people who actually looked, how many clicked'. Falling CTR with stable CTOR is an open-rate problem; falling CTOR is a content problem.
- What is a good click rate for email?
- Low single digits against delivered is a common healthy band for opted-in newsletters, with segmented and transactional sends clicking at multiples of that. Your own trend matters more than any table — and CTOR is the steadier metric to track, because open rates are increasingly inflated by privacy pre-fetching.
- Why is my open rate so unreliable now?
- Apple Mail privacy protection pre-fetches email images for users who opt in, recording opens that never happened. Opens are still directionally useful but no longer precise — which is why click-based metrics (CTR, CTOR) and conversion tracking should carry the analysis.
- How many clicks should I expect from a campaign?
- Multiply delivered by your list's click rate: 9,000 delivered at 2.3% is about 210 clicks. The calculator's plan mode runs it both ways — a click goal returns the delivered volume the goal needs at your historical click rate.
- Does a higher CTR always mean a better email?
- Not alone. Clicks must convert downstream; a curiosity-gap subject line that mismatches the email content inflates opens and can inflate clicks while tanking conversions. Read CTR with CTOR and with post-click conversion rate before calling a send a win.
- How do I raise CTOR without touching subject lines?
- Inside the email: one primary call to action, stated in the first screen, linked early; a single clear offer instead of a menu; and a landing page that continues the sentence the email started. CTOR measures the content decision — the fixes live in the content.