Close rate, also called closing ratio, is the share of qualified opportunities that become customers. It measures the whole conversion path from a working opportunity to a signed deal, including everything that stalls, goes silent, or ends in no decision.
The formula is:
Close rate = closed-won deals ÷ qualified opportunities in the cohort x 100
HubSpot's glossary states it as closed deals divided by total qualified leads. DealHub uses closed sales over total sales opportunities. Both put the full worked population in the denominator, and that is the defining feature of the metric.
Close rate versus win rate
The two get used interchangeably. They should not be:
- Close rate: won ÷ everything qualified that was worked, whether it
closed, died quietly, or never decided.
- Win rate: won ÷ (won + lost), only opportunities that reached a closed
outcome. See the win rate guide for the cohort rules.
Win rate asks: when a decision happens, do we win it? Close rate asks: of everything we qualify, how much becomes revenue? A team can hold a 45% win rate and an 18% close rate at the same time. The gap between them is the no-decision and silent-stall population, and it is often the biggest single loss bucket in the funnel. Tracking both, on the same cohort, is the only way to see that bucket at all.
A worked example
200 opportunities entered the qualified stage in Q1. By the time the cohort matures, 40 are won, 90 are lost, and 70 faded without a decision.
Close rate: 40 ÷ 200 = 20%
Win rate on the same cohort:
40 ÷ (40 + 90) = 30.8%
Same team, same quarter, same deals. Ten points of difference purely from the denominator. Any dashboard comparing a close rate against a win-rate benchmark is comparing two different metrics. The 70 no-decision deals are the real finding here: more revenue died in silence than in competitive losses, and neither number alone would have surfaced that.
Definition pitfalls
- calling a won-over-decided calculation a close rate, or the reverse;
- using raw leads as the denominator for one team and qualified
opportunities for another, then ranking them;
- measuring before the cohort matures, which undercounts late wins;
- letting no-decision deals sit open forever so they never hit the
denominator's outcome view;
- changing the qualification bar and reading the rate change as performance;
- reporting counts without a dollar-based companion figure.
Where close rate fits
Close rate belongs in the Measurement pillar of the Tenbound Pipeline Architecture Standard: the end-to-end conversion check on the qualified funnel.
Use win rate to evaluate competitive selling and close rate to evaluate the whole system: qualification quality, pipeline hygiene, and follow-through. Segment both by source, size band, and rep before drawing any conclusion. When close rate lags win rate badly, the problem is rarely the demo. It is deals that never reached a decision, and the fix lives in qualification and mutual-action discipline, not in closing technique.