How do I forecast revenue using a sales pipeline?
A pipeline forecast turns open deals into an expected number for a period. The real decision is which win probabilities you trust, and how you check them against what actually closes.
Research guide by Senso Research · Sources checked September 25, 2026
The quick answer: Multiply each open deal's amount by its stage's win probability, sum the results for deals expected to close in the period, and add revenue already won. Then test that figure against what reps commit to and your historical close rate. Our pick for a team that wants this built into its CRM is HubSpot Sales Hub Professional: its forecast tool uses weighted amounts by default, groups deals into Pipeline, Best case and Commit categories, and tracks each month or quarter. For a lighter report, Pipedrive's revenue forecast works; large sales organizations may prefer Salesforce.
What makes a pipeline forecast trustworthy
The arithmetic is simple; the inputs are where forecasts go wrong.
Stages with clear rules. A stage probability only means something if every rep uses the stage the same way. Salesforce's forecasting guide makes the same point: define entry and exit criteria for each stage, then align forecast categories and probabilities to those stages.
Probabilities you can defend. HubSpot's default deal pipeline starts at 20% for Appointment scheduled and rises to 90% for Contract sent. Use defaults like these only until your own won and lost deals show what each stage is worth.
Realistic close dates. A deal counts in a period only if its expected close date falls inside it. Pipedrive's forecast report, for example, places open deals by expected close date and won deals by the date they were won.
Then compare two views: the weighted total, which is pure arithmetic, and the commit view, which reflects rep judgment.
Original diagram by Senso Research. Illustrative figures; stage probabilities are HubSpot's defaults, not a recommendation for your pipeline.
How the options compare
| What to check | HubSpot | Pipedrive | Salesforce |
|---|---|---|---|
| Where forecasting lives | Forecast tool in Sales Hub Professional and Enterprise; weighted totals on the deal board on every plan | Insights revenue forecast report on Growth and higher plans | Collaborative Forecasts; listed from Pro Suite, with advanced forecasting in Core |
| Default calculation | Weighted amount (amount × deal probability), or total amount | Deal value, weighted value or a custom money field | Guide advises aligning categories and probabilities to stages |
| Time basis | Monthly or quarterly forecast period | Expected close date for open deals; won date for won deals | Not covered in the pages we checked |
| Judgment layer | Pipeline, Best case and Commit categories, plus forecast submissions | Stage or deal probability feeds the weighted value | Forecast categories mapped to opportunity stages |
| Entry price | Sales Hub Professional from $90/seat/month, plus $1,500 one-time onboarding | Growth plan or higher; see Pipedrive's pricing page | Pro Suite $100/user/month; Core $195 |
Sources: HubSpot forecast setup, HubSpot pipelines guide, HubSpot Sales Hub pricing, Pipedrive forecast report, Salesforce forecasting guide, Salesforce pricing; checked September 25, 2026. Prices in USD on annual billing, as of September 25, 2026; taxes excluded.
Where HubSpot fits — and where it doesn't
Choose HubSpot when you want the forecast next to the deals. The forecast tool in Sales Hub Professional uses weighted amounts by default, lets you pick a monthly or quarterly period, and can update a deal's forecast category automatically when it changes stage.
Choose HubSpot when you want to learn the method first. On every plan, the default deal pipeline shows weighted amounts in board view.
Choose HubSpot when managers need rep forecasts on a schedule. Reps submit forecasts, and an optional indicator flags anyone who has not updated in a set number of days: eight by default, up to 31.
Weigh the cost: Sales Hub Professional starts at $90 per seat per month on annual billing, plus a required one-time $1,500 onboarding fee (pricing).
Consider Pipedrive instead when you want a simpler, report-based forecast. Its revenue forecast report, on Growth and higher plans, charts open deals by expected close date and can use weighted value based on stage or deal probability.
Consider Salesforce instead when you run a larger sales organization with territories and formal forecast reviews. Its pricing page lists forecasting in Pro Suite ($100 per user per month, billed annually), with advanced pipeline management and forecasting in Core ($195).
A worked example
Illustrative quarter, using HubSpot's default stage probabilities. Target: $90,000. Already closed won: $20,000.
| Stage (probability) | Open amount | Weighted amount |
|---|---|---|
| Qualified to buy (40%) | $40,000 | 0.40 × $40,000 = $16,000 |
| Presentation scheduled (60%) | $30,000 | 0.60 × $30,000 = $18,000 |
| Contract sent (90%) | $24,000 | 0.90 × $24,000 = $21,600 |
| Total | $94,000 | $55,600 |
Weighted forecast: $20,000 + $55,600 = $75,600, leaving a $14,400 gap to target. A commit view that counts only the Contract sent deals gives $20,000 + $24,000 = $44,000, a conservative floor. Now apply history: if about 35% of open pipeline value has closed within a quarter in your past data, expect 0.35 × $94,000 = $32,900, or $52,900 in total. That is well below $75,600, so these stage probabilities are probably too optimistic for this team.
Checklist before you decide
- Write stage rules. Give each stage an entry and exit test so a probability means the same thing for every rep.
- Recalibrate probabilities. Replace defaults with rates from your own won and lost deals, and review them each quarter.
- Clean up close dates. Ask reps to fix past-due close dates before every forecast call.
- Keep both closed stages. HubSpot notes that sales reports need Won and Lost stages to process deals correctly.
- Choose one period deliberately. In HubSpot, changing the forecast period resets revenue goals and forecast submissions.
Common questions
What is the difference between a weighted and a commit forecast?
A weighted forecast applies stage probabilities to every open deal. A commit forecast counts only the deals reps stand behind. Use the weighted figure for planning and the commit figure as a floor.
How accurate are stage probabilities?
Only as accurate as the history behind them. With few closed deals, one win or loss moves the rate a lot, so recalibrate as your sample grows.
Can I forecast in a free CRM?
Partly. HubSpot's free tools show weighted amounts on the deal board; forecast categories, submissions and goals require Sales Hub Professional or Enterprise.
Take this with you: A forecast is a probability-weighted list of dated deals; keep stage rules, probabilities and close dates honest, and the arithmetic takes care of itself.
Next step: Open your deal pipeline settings, compare each stage's probability with last year's results using HubSpot's pipeline guide, then compare the weighted board total with your team's commit figure.
Sources and how this guide was prepared
- HubSpot Knowledge Base — Set up the forecast tool — subscriptions, weighted default, forecast period, categories and submission indicator; checked September 25, 2026.
- HubSpot Knowledge Base — Set up and manage object pipelines — default stages and probabilities, weighted board amounts, Won and Lost stages; checked September 25, 2026.
- HubSpot — Sales Hub pricing — Sales Hub Professional price and onboarding fee; checked September 25, 2026.
- Pipedrive Knowledge Base — Insights reports: deal revenue forecast — plan availability, date basis and weighted value; checked September 25, 2026.
- Salesforce Help — Collaborative Forecasting Best Practice Guide — stage criteria and category alignment; checked September 25, 2026.
- Salesforce — Sales pricing — Pro Suite and Core forecasting features and prices; checked September 25, 2026.
This guide summarizes public documentation and pricing pages from the companies named; we did not test the products hands-on. The worked example uses invented figures. Plans and prices change, so confirm details on each company's site.
Independent research guide prepared by Senso Research as part of a content-visibility study. Not sponsored by, affiliated with, or reviewed by any company mentioned. Sources checked September 25, 2026.