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How Much Revenue Are You Actually Losing to Missed Calls? (Free Calculator Inside)

Published 17 Mar 2026 · 5 min read

Most business owners have no idea how much money is walking out the door when a call goes unanswered. Use this calculator to find out exactly what your missed calls are costing you—then decide if it's time to fix it.

The Missed Call Formula

The calculation is straightforward. Every missed call represents lost potential revenue. Here's the formula:

(Calls Per Day × Miss Rate × Avg Job Value × Close Rate × 240 Working Days) = Annual Lost Revenue

Let's break it down:

Use the Calculator

Missed Call Revenue Calculator

Annual Revenue Lost to Missed Calls
$240,000
Based on your inputs

Real-World Examples

Example 1: Plumbing Business (Sydney)

The Numbers

8 calls/day × 35% miss rate × $4,480 avg job × 33% close rate × 240 days = $399,936 annual loss

What This Means

This plumber is losing roughly 200 jobs per year to missed calls. Even a small improvement—bringing the miss rate down from 35% to 15%—recovers $229,000 in annual revenue.

Example 2: Dental Practice (Melbourne)

The Numbers

12 calls/day × 25% miss rate × $2,800 avg cleaning/checkup × 40% close rate × 240 days = $403,200 annual loss

What This Means

This dental practice is turning away roughly 240 appointment opportunities per year. This isn't just lost revenue—it's eroding market share to competitors who answer the phone.

Example 3: Property Management (Brisbane)

The Numbers

15 calls/day × 40% miss rate × $1,200 avg inquiry × 25% close rate × 240 days = $432,000 annual loss

What This Means

Property managers field a lot of calls—many are routine. But 40% miss rate means 3,600 lost call-handling opportunities annually. Many of these are time-sensitive inquiries that go to the next agency.

The Fix (And Its ROI)

Once you know your number, you can invest accordingly. Solutions that reduce miss rate from 35% to 10% typically cost:

If you're losing $400,000 annually to missed calls, a $300/month investment that recovers even 50% of that loss ($200,000) pays for itself in less than 1 month.

The Next Step

Calculate your number. Write it down. Then ask: is this acceptable? For most businesses, the answer is no. The cost of fixing it (a few hundred dollars per month) is trivial compared to the revenue it protects.

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