What it means
Average deal size sits at the heart of most revenue models because revenue is simply the number of deals multiplied by their average value. That makes it a lever alongside win rate and deal volume, and usually the cheapest of the three to move, since raising the value of deals you already win costs no additional marketing spend.
For planning, the measure turns a revenue target into a resource question. If a team needs $6,000,000 next year and the average deal is $50,000, it must close 120 deals, which combined with the win rate tells you how many opportunities and how many salespeople are required.
The calculation depends on defining the numerator carefully. In a subscription business the convention is usually first-year contract value or annual recurring revenue rather than total contract value, because mixing a three-year deal with a one-year deal inflates the average and makes period-to-period comparison meaningless.
The most important nuance is that the arithmetic mean can be a poor description of a mixed pipeline. A handful of enterprise contracts sitting alongside many small ones produces an average that no actual customer resembles, which is why segmenting by product, channel or customer size, or quoting the median alongside the mean, gives a far more useful picture.
Average deal size also interacts with everything downstream. Larger deals typically take longer to close, involve more stakeholders and carry higher implementation costs, so a rising average is only good news if the sales cycle and delivery cost have not risen faster than the value.
In practice
Real-world examples.
Example
An industrial cleaning contractor finds its average contract is $32,000 a year. By bundling window and floor services into a single agreement, the average rises to $41,000 with no increase in the number of clients won.
Example
A recruitment agency reviews its average placement fee of $14,500 and discovers three consultants are discounting to close. Enforcing a floor rate lifts the average to $16,200 and adds roughly $190,000 of annual revenue on the same volume.
Example
A SaaS company reports a jump in average deal size from $28,000 to $46,000 after moving upmarket. The finance team notes that the sales cycle also lengthened from 45 to 110 days, so cash collection is slower despite the better headline figure.
Think of it
“Average deal size is the typical value of your sales-how big each deal is on average.
Formula
Calculation
Average Deal Size = Total Value of Closed-Won Deals / Number of Closed-Won Deals.
A business software company closed $2,400,000 of new annual contract value last year across 48 deals.
Average deal size: $2,400,000 / 48 = $50,000.
Now look underneath the average. Forty of those deals were small-business contracts at $25,000 each, giving 40 x $25,000 = $1,000,000, and eight were enterprise contracts at $175,000 each, giving 8 x $175,000 = $1,400,000. The two segments sum to $2,400,000 across 48 deals, confirming the average, but the median deal is $25,000 and almost no customer is worth $50,000.
The planning value of the number is still real. To add $600,000 of revenue next year, the company can either close 12 more deals at the current average (12 x $50,000 = $600,000) or raise the average by $12,500 across the same 48 deals (48 x $12,500 = $600,000). The second route needs no extra pipeline, which is why pricing and packaging changes usually get attention first.Case study
Seen in the real world.
Fernway Systems is an invented workflow software vendor used purely as an illustrative example. Its average deal size had been flat at about $38,000 for three years while the sales team grew from six people to fourteen, so revenue rose but cost per dollar of revenue rose faster.
In this fictional case the analysis showed that 70% of deals closed at the entry tier because that was the tier the sales team led with. Buyers were never shown the higher tier, so nobody had to say no to it.
Fernway restructured its packaging into three tiers with the middle one as the default recommendation, and trained the team to open on business outcomes rather than seat counts. In this illustrative outcome the average deal size reached $57,000 within four quarters on a similar number of closed deals, adding roughly $1,900,000 of annual revenue with no additional headcount.
Watch out
Common mistakes.
- Mixing contract lengths in one average. Counting a three-year commitment at its total value next to one-year deals inflates the figure and makes any comparison between quarters unreliable.
- Reporting the mean when the pipeline is lopsided. A few very large deals drag the average away from the typical customer, so decisions based on it can misdirect pricing and targeting.
- Chasing a higher average without checking the cost of getting it. Bigger deals often mean longer cycles, more discounting on renewal and heavier implementation, all of which can eat the extra revenue.
Questions
People also ask.
Should renewals and upsells be included?
Keep them separate from new business, because blending them hides whether growth is coming from winning customers or from expanding existing ones.
How does average deal size relate to customer lifetime value?
Deal size is the value of one transaction or contract year, while lifetime value estimates the total contribution over the whole relationship including renewals, so a modest deal size can still support a high lifetime value.
What is a realistic improvement to aim for?
Most teams can move the average by 10% to 20% through pricing, packaging and disciplined discounting before needing to change the customers they target.
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