Metric Definition
Average deal size
Average deal size measures the mean revenue value of closed-won deals. It is a fundamental sales metric that directly influences pipeline velocity, quota planning, and the economics of your go-to-market model.
6 min read
What is average deal size?
Average deal size is the mean revenue value of closed-won deals over a given period. It tells you how much revenue each deal typically generates and is a direct input to revenue forecasting, quota setting, and pipeline coverage calculations.
Deal size matters because it determines the sales motions that are economically viable. A business with an average deal size of one thousand pounds needs a high-volume, low-touch sales process. A business with a deal size of one hundred thousand pounds can invest in a high-touch, consultative approach. The economics are straightforward: the cost to close a deal (sales compensation, time, resources) must be justified by the revenue it generates.
Average deal size is one of the four levers in the sales pipeline velocity formula. Increasing deal size by 20% has the same impact on revenue velocity as generating 20% more opportunities or improving win rate by 20%. Of these options, increasing deal size often requires the least incremental cost because you are extracting more value from deals already in progress.
The metric should be tracked over time to identify trends. A declining average deal size might indicate pricing pressure, a shift toward smaller customers, or increasing discounting. A rising average might indicate successful up-market expansion, better cross-selling, or improved value communication. The closely related average contract value metric normalises for contract length in subscription businesses.
How to calculate average deal size
Divide total closed-won revenue by the number of closed-won deals. If twenty deals closed for a total of one million pounds, the average deal size is fifty thousand pounds.
Median deal size is often more useful than mean because a few very large or very small deals can skew the average significantly. A team with nineteen deals at ten thousand and one deal at five hundred thousand has a mean of thirty-four thousand five hundred but a median of ten thousand. The median better represents the "typical" deal.
Track deal size by segment, product, lead source, and rep. These cuts reveal important patterns. Deal size by segment shows whether you are moving up or down market. Deal size by product shows which products command the highest prices. Deal size by lead source shows which pipeline sources generate the most valuable opportunities. Deal size by rep shows which reps are best at selling larger deals.
| Measurement | Calculation | When to use |
|---|---|---|
| Mean deal size | Total revenue / number of deals | Revenue forecasting and pipeline velocity |
| Median deal size | Middle value when all deals are sorted by size | Understanding the "typical" deal when distribution is skewed |
| Weighted average deal size | Revenue-weighted average across segments | When comparing across segments with different deal frequencies |
Average deal size in a metric tree
Average deal size is a key input to revenue and pipeline velocity. In a metric tree, it decomposes into the factors that determine how much each deal is worth.
The tree shows that deal size is driven by which product the customer buys, how much of it they buy, what additional products or services are included, and how much is discounted. Each of these is an actionable lever. Training reps on cross-selling increases add-on revenue. Implementing deal desk governance reduces unnecessary discounting. Moving up-market shifts the product tier mix toward higher-value plans.
Average deal size benchmarks
| Segment | Typical deal size | Sales model |
|---|---|---|
| Self-serve / PLG | £500 to £5,000 ARR | No sales involvement. Product drives conversion. |
| SMB | £5,000 to £25,000 ARR | Inside sales. Short cycles, demos, quick close. |
| Mid-market | £25,000 to £100,000 ARR | Inside and field sales. Pilots, multi-stakeholder. |
| Enterprise | £100,000 to £500,000+ ARR | Field sales. Long cycles, procurement, custom terms. |
How to increase average deal size
- 1
Sell on value, not features
Reps who quantify the business impact of the product close larger deals. If your product saves the customer two hundred thousand pounds per year, a fifty-thousand-pound deal is easy to justify. Train reps to build ROI cases for every opportunity.
- 2
Cross-sell and bundle products
Include complementary products, services, or support tiers in proposals. Bundles provide better value perception and increase the total deal size. Identify natural product pairings and train reps to position them.
- 3
Reduce discounting through deal governance
Track average discount percentage as a key metric. Implement approval thresholds for discounts above a certain level. If average discounting exceeds 15%, it is eroding deal size without necessarily improving win rates.
- 4
Target larger accounts and use cases
Moving up-market naturally increases deal size. Identify ideal customer profiles in larger segments and adjust marketing targeting and sales territory assignments accordingly.
- 5
Encourage multi-year commitments
Multi-year contracts increase total contract value. Offer modest term discounts that increase TCV while slightly reducing ACV. The tradeoff is typically worthwhile for the predictability and reduced churn risk.
Common mistakes with average deal size
Chasing large deals at the expense of velocity
Larger deals often have longer sales cycle lengths and lower win rates. The pipeline velocity formula shows that a 50% increase in deal size offset by a 50% increase in cycle length results in zero net improvement.
Not segmenting the metric
A blended average deal size across SMB and enterprise segments is misleading. Segment by customer size, product, and lead source to understand where deal size is growing or shrinking.
Ignoring the discount impact
List price may be increasing, but if discounts are growing faster, effective deal size is declining. Track both gross and net deal size to understand the true trend.
Using mean instead of median for performance management
A single large deal can inflate a rep's average deal size for the quarter. Use median alongside mean to get a more balanced view of typical deal performance.
Related metrics
Win Rate
Sales MetricsMetric Definition
Win Rate = (Closed-Won Deals / Total Closed Deals) × 100
Win rate measures the percentage of sales opportunities that result in a closed-won deal. It is the single most revealing metric of sales effectiveness, indicating how well your team converts qualified pipeline into revenue.
Sales Pipeline Velocity
Sales MetricsMetric Definition
Pipeline Velocity = (Opportunities × Deal Value × Win Rate) / Sales Cycle Length
Sales pipeline velocity measures how quickly deals move through your pipeline and generate revenue. It combines the four core levers of sales performance into a single metric that reveals the rate at which your pipeline converts to closed revenue.
Average Contract Value
ACV
Sales MetricsMetric Definition
ACV = Total Contract Value / Contract Term in Years
Average contract value measures the average annualised revenue per customer contract. It is a critical SaaS and B2B metric that informs sales strategy, go-to-market model selection, and unit economics by revealing how much revenue each deal typically generates.
Sales Cycle Length
Sales MetricsMetric Definition
Sales Cycle Length = Sum of Days to Close for All Deals / Number of Deals Closed
Sales cycle length measures the average number of days from the creation of a sales opportunity to its close. It is a key efficiency metric that directly affects pipeline velocity, revenue forecasting accuracy, and the cost of sales.
See what drives your deal size
Build a metric tree that connects average deal size to product mix, seat count, cross-sell, and discounting so you can identify the levers that increase revenue per deal.
