Lead to Close Rate Calculator

Background.

A single lead-to-close rate is a true number that tells you almost nothing useful. Three and a half percent of leads become customers — fine, but is that because marketing sends unqualified traffic, because qualified leads never become real deals, or because your reps lose the deals they do create? Those three failures have completely different fixes and identical headline numbers, which is why this calculator asks for the whole pipeline rather than the two ends of it.

The stages multiply. Twelve hundred leads producing 420 qualified leads, 168 opportunities and 42 wins gives stage rates of 35%, 40% and 25%, and 0.35 × 0.40 × 0.25 = 0.035 — the 3.5% end-to-end rate exactly. That identity is the practical point: a stage rate is the fraction of what reaches it, so lifting the worst stage from 25% to 30% raises the overall rate by the same proportion, from 3.5% to 4.2%, wherever in the chain that stage sits. The calculator names the weakest stage for you and reports ties as ties.

One caveat belongs beside the answer, not in a footnote. These are cohort rates: of the leads that entered in the period, what share reached each later stage. That is not the win rate your CRM shows. Salesforce's own documentation calculates win rate as WON ÷ CLOSED and states that it is "based only on opportunities that have been closed (either won or lost)" — open deals are excluded. This page divides by every opportunity created, including deals still in play, so if your sales cycle is longer than the period you are measuring, the opportunity-to-win figure here will be lower than your CRM's win rate and both will be correct. Use a period at least one full sales cycle old if you want the two to converge.

The first stage deserves particular suspicion. A weak lead-to-qualified rate is usually read as "marketing is sending rubbish", but it also counts every lead nobody ever touched. Sabnis, Chatterjee, Grewal and Lilien put a number on that in the Journal of Marketing: the sales lead black hole is "the 70% of leads generated by marketing departments that sales representatives do not pursue". Before rebuilding a lead-scoring model, check what share of the disqualified leads have any contact activity logged at all.

Stage names come from HubSpot's published lifecycle ladder — Lead, Marketing Qualified Lead, Sales Qualified Lead, Opportunity, Customer — because it is the most widely documented version. If your CRM uses different labels, map them once and keep the mapping fixed; changing where the qualification line sits moves two stage rates at once and neither move means anything.

Finally, the two money outputs. Leads per closed deal turns the rate into a plan: at 28.57 leads per deal, a quota of 20 new customers needs about 572 leads. Revenue per lead — deal value times the close rate — is the figure to hold against your cost per lead, because a pipeline that converts beautifully at a loss is still a pipeline that loses money.

What is lead to close rate calculator?

Lead-to-close rate is the share of leads entering a sales pipeline that end as won customers. Because a pipeline is a sequence of gates, it is more useful decomposed than aggregated: the end-to-end rate is the product of the individual stage rates, so the same 3.5% can be a qualification problem, a deal-creation problem or a closing problem. The stages used here follow HubSpot's documented lifecycle ladder, in which a Lead is "a contact or company that has converted on your website or through some other interaction with your organization beyond a subscription sign up", a Marketing Qualified Lead is one "that your marketing team has qualified as ready for the sales team", a Sales Qualified Lead one "that your sales team has qualified as a potential customer", an Opportunity one "associated with a deal", and a Customer one "with at least one closed deal". Salesforce's equivalent stage analysis reports "the average conversion rate for open opportunities for the selected stage".

How to use this calculator.

1. 01Fix a period and a cohort first. Every number you enter must describe the same group of leads — the ones created in that window — followed through to whatever stage they have reached.
2. 02Enter every lead, including ones reps sourced themselves. Counting only marketing leads while counting all wins produces a close rate that is simply wrong, usually flatteringly so.
3. 03Enter qualified leads at whatever gate your team actually uses. What matters is that the same gate is used in every period, not which gate you pick.
4. 04Enter opportunities and closed-won deals from that same cohort. Do not use this month's wins against this month's leads unless your sales cycle is genuinely shorter than a month.
5. 05Add an average deal value if you want revenue per lead. Use first-year value consistently rather than mixing total contract value into some deals and not others.
6. 06Read the weakest-stage line, then check whether that stage is a real conversion problem or a data problem — unworked leads and stale opportunities both show up as poor conversion.

The formula.

Four divisions and a chain. Lead → qualified is qualified ÷ leads; qualified → opportunity is opportunities ÷ qualified; opportunity → closed-won is wins ÷ opportunities; and the end-to-end lead-to-close rate is wins ÷ leads. With the worked figures: 420 ÷ 1,200 = 35.00%, 168 ÷ 420 = 40.00%, 42 ÷ 168 = 25.00%, and 42 ÷ 1,200 = 3.50%. Because each stage divides by the previous stage's output, the intermediate counts cancel and the product of the three stage rates reproduces the end-to-end rate exactly: 0.35 × 0.40 × 0.25 = 0.035.

Leads per closed deal is simply leads ÷ wins, the reciprocal of the close rate — 1,200 ÷ 42 = 28.571428…, or equivalently 100 ÷ 3.5. Revenue per lead is wins × average deal value ÷ leads, which is the same thing as deal value × close rate: 42 × $9,500 ÷ 1,200 = $332.50, and $9,500 × 3.5% = $332.50.

The calculator requires a monotone funnel — wins ≤ opportunities ≤ qualified ≤ leads — and rejects anything else with a specific message, because a funnel that widens is nearly always a counting error rather than a miracle. It also requires at least one win, since leads-per-deal has no finite value at zero.

Rounding stage: nothing is rounded on the way through. All four divisions, the reciprocal and the revenue figure stay at full decimal precision and are rounded once, at the point results are returned, to ten decimal places. The only place any earlier rounding appears is inside the plain-language "where the pipeline leaks" sentence, which quotes the weakest stage rate to two decimal places for readability; the numeric outputs above it are unrounded.

A worked example.

Frequently asked questions.

References& sources.

1. [1]HubSpot Knowledge Base, "Use contact and company lifecycle stages" (current edition, retrieved 2026-07-29). Vendor documentation defining the stage ladder used on this page: Lead — "a contact or company that has converted on your website or through some other interaction with your organization beyond a subscription sign up"; Marketing Qualified Lead — "a contact or company that your marketing team has qualified as ready for the sales team"; Sales Qualified Lead — "a contact or company that your sales team has qualified as a potential customer"; Opportunity — "a contact or company that is associated with a deal"; Customer — "a contact or company with at least one closed deal". Also notes that automatic lifecycle updates "will only move the stage forward". Publicly accessible.
2. [2]Salesforce Help, "Calculate Win Rate on Closed Opportunities in a Report" (article 000387867, retrieved 2026-07-29). Gives the formula WON:SUM / CLOSED:SUM and states that it "calculates the win rate based only on opportunities that have been closed (either won or lost)" — the basis for this page's warning that its cohort opportunity-to-win rate is not the same statistic as a CRM win rate. Publicly accessible.
3. [3]Salesforce Help, "Sales Stage Analysis Conversion" (current edition, retrieved 2026-07-29). Defines the stage conversion KPI as "the average conversion rate for open opportunities for the selected stage", and the opportunity detail as "Total closed won / Total opportunities based on the selected stage". Consulted as a second, independent vendor definition of stage-level pipeline conversion; it agrees with the stage-by-stage decomposition this page implements. Publicly accessible.
4. [4]Sabnis, G., Chatterjee, S. C., Grewal, R. & Lilien, G. L. (2013). "The Sales Lead Black Hole: On Sales Reps' Follow-Up of Marketing Leads." Journal of Marketing, 77(1), 52–67, DOI 10.1509/jm.10.0047 (abstract retrieved 2026-07-29). Peer-reviewed source for the statement that the sales lead black hole is "the 70% of leads generated by marketing departments that sales representatives do not pursue", which is why this page warns that a weak lead-to-qualified rate may be a follow-up problem rather than a lead-quality problem. Abstract public; full text paywalled.