What Is a Sales Forecast?
A sales forecast is a prediction of how much revenue a team will close in a future period, built from pipeline, historical conversion and rep judgment. It drives hiring, budgeting and board expectations — so forecast accuracy is one of the most scrutinized outputs of a sales org.
Key takeaways
- A forecast predicts revenue for a period from pipeline and conversion data.
- Common methods: weighted pipeline, forecast categories, historical run-rate.
- Accuracy matters more than optimism — the forecast drives real decisions.
Common forecasting methods
- Weighted pipeline — deal value × stage probability.
- Forecast categories — Commit / Best Case / Pipeline judgment roll-ups.
- Historical run-rate — extrapolating from past close rates.
- Rep-submitted forecasts, reconciled by managers.
Why accuracy matters
A forecast isn't a target — it's a prediction the business plans around. Over-forecast and you over-hire and overspend; under-forecast and you leave growth on the table. Disciplined, evidence-based forecasting is what makes the rest of the business plannable.
Frequently asked questions
What is a sales forecast?
A prediction of the revenue a team will close in a future period, built from pipeline, historical conversion rates and rep judgment.
How do you forecast sales?
Common approaches include weighted pipeline, forecast categories and historical run-rate — often combined and reconciled with rep-submitted numbers.
What is a weighted forecast?
A forecast that multiplies each deal's value by its stage win probability, so the total reflects likelihood rather than full face value.
Related service: Build forecasting in HubSpot