Formulas and metrics

Average Deal Size

The mean revenue value of closed deals over a specific period, used to forecast revenue and evaluate sales performance.

Tomba Team
March 23, 2026

Average deal size is a sales metric that represents the mean revenue value of closed-won deals over a given time period. It is calculated by dividing total revenue from closed deals by the number of deals closed. This metric is essential for revenue forecasting, territory planning, quota setting, and evaluating whether sales teams are targeting the right market segments.

Tracking average deal size over time reveals important trends about your sales motion and market positioning. An increasing average deal size may indicate success in moving upmarket, improving upselling, or attracting larger customers. A declining average may suggest competitive pressure, discounting issues, or a shift toward smaller accounts. Segmenting average deal size by rep, product, or lead source helps identify which areas are performing well and where adjustments are needed.

Average deal size is also a key input in the pipeline velocity formula. Increasing deal size while maintaining or improving win rate and cycle length accelerates revenue generation. Sales teams can influence average deal size through better targeting reaching senior decision-makers who have larger budgets and broader needs.

Key Points

  • Average deal size is the mean revenue per closed deal over a specific time period
  • It is used for forecasting, quota setting, and evaluating sales team performance

Best Practices

  • Track average deal size by segment to identify which markets and products generate the most value
  • Analyze trends over time to detect shifts in market positioning or competitive dynamics
  • Coach reps to engage higher-level stakeholders who can authorize larger purchases

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