Average Deal Size
The mean value of closed-won opportunities over a period. An input to pipeline velocity and capacity planning.
Why the mean is usually the wrong summary
Deal values are right-skewed: many modest deals and a few large ones. The mean is pulled upward by the tail and sits above the majority, so it describes no typical deal.
Report both, and the shape
Reading a change
| Also observed | Likely cause |
|---|---|
| Deal count fell, average rose | Mix shift toward larger segments, or fewer small wins |
| Count steady, average rose | Pricing, packaging or discounting discipline |
| Average rose, cycle lengthened | Moving upmarket — expect win rate to change too |
| Average rose, win rate fell | Pursuing larger deals you are less equipped to win |
Source: Diagnostic framing
Computing it defensibly
Use closed-won only. Including open pipeline mixes hope with outcome.
Group by close date cohort and hold the segment definition constant.
Exclude renewals and expansion unless you say so — they have different economics and usually different sizes.
Report count alongside value, always. An average without a count cannot be interpreted.
RELATED TERMS
Pipeline Velocity
A composite of the four variables determining how fast pipeline converts to revenue: number of opportunities, average deal size, win rate, and sales cycle length.
Capacity Planning
Translating a revenue target into the number of productive selling resources required to hit it, accounting for ramp, attrition and expected attainment.
Average Contract Value (ACV)
The annualised value of a contract, averaged across a set of deals. The standard unit for comparing new business.
COMMON QUESTIONS
- How do you calculate average deal size?
- Total closed-won value divided by the number of closed-won deals in a cohort. Report the median alongside it — deal size distributions are right-skewed and the mean sits above most deals.
- Should you use mean or median deal size?
- Median for describing a typical deal, mean for capacity and revenue planning where the total matters. Reporting only the mean makes the typical deal look larger than it is.
- Why did our average deal size change?
- Usually mix, not pricing. A shift in segment, product or channel moves the average without any change in what you charge — check the composition before concluding anything about pricing.
- Does a rising average deal size mean things are improving?
- Not on its own. It rises when you win fewer small deals, which can accompany falling total revenue. Read it beside deal count and win rate.
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