Use your numbers. See the assumptions. Estimate the gap

Free 4-minute estimator

WHAT COULD
MISSED LEADS
BE COSTING?

Use your own enquiry volume, response gap, close rate, and first-sale value. You will get a low, expected, and high scenario—not a guaranteed revenue claim.

Lead leakage estimator

PUT REAL
NUMBERS ON IT.

Change any input and the scenarios update immediately. The calculator does not submit inputs to a form or application endpoint; share links place the numbers in the URL.

01Your assumptions
02Your estimate
Enquiries without a next step / month0
Potential customers not won / month0

Monthly revenue at risk

Low $0 75% of your close-rate assumption
Expected $0 Your entered close-rate assumption
High $0 125% of your close-rate assumption
Expected annual revenue at risk $0 Revenue at risk is not profit, guaranteed loss, or guaranteed recoverable revenue.

Read the result honestly

AN ESTIMATE.
NOT A PROMISE.

This is a planning model. It helps you decide whether the response gap deserves measurement and process work. It does not prove that every missed enquiry would have bought.

01

Count the whole gap

Include calls, forms, WhatsApp, DMs, and booking requests that never receive a clear next step—not only calls nobody answered.

02

Use first-sale value

A defensible first transaction is safer than a speculative lifetime value. The estimate is more useful when the inputs are conservative.

03

Separate risk from recovery

Revenue at risk is not guaranteed recoverable revenue. Recovery depends on lead quality, timing, capacity, consent, and the quality of the follow-up.

The method

FOUR INPUTS.
ONE VISIBLE FORMULA.

01

Monthly gap

Volume

Weekly enquiries × 52 ÷ 12 × percentage without a clear next step.

/
02

Expected missed wins

Conversion

Monthly gap × the close rate you normally achieve when a qualified enquiry is handled properly.

/
03

Revenue at risk

Value

Expected missed wins × average first-sale value. Low and high scenarios vary the close-rate assumption by 25%.

/
04

Validate for 14 days

Evidence

Track every enquiry, response time, next step, and outcome. Replace assumptions with observed numbers before making an investment decision.

/

Method version 1.0 · Last reviewed 24 July 2026 · Currency shown as USD

Questions and limits

BEFORE YOU ACT.

Does this prove how much revenue I lost?+

No. It estimates revenue at risk from your assumptions. Lead quality, capacity, timing, consent, and execution all affect what could actually be recovered.

Do you store my numbers?+

The calculator does not submit inputs to a form or application endpoint. A share link places the four numbers in the URL so you can reopen the same scenario; do not put confidential information in the calculator.

Why use first-sale value?+

It is usually easier to defend than lifetime value. If your business has reliable cohort data, you can test a broader value separately and label it clearly.

What should I do with the result?+

Run a 14-day enquiry log first. If the gap is real, fix ownership, response standards, routing, follow-up, and human handoff before adding more tools.

The number is only the start

MAP THE
REAL WORKFLOW.

If the gap is large enough to matter, we can trace where enquiries stall, define the human handoff, and build the smallest system worth testing.

Ask about your lead workflow