HELLO DEMO Forecast Reliability Calculator
Quarterly new-business target$2,500,000
Qualified pipeline this quarter$9,000,000
Committed forecast$1,400,000
Act 1 · The Promise

A forecast is math, not mood.

Most revenue forecasts are a feeling with a dollar sign attached. The real one is arithmetic: the qualified pipeline you hold, times the rate it actually closes, minus the deals that drift past the quarter. Start with what the averages promise. Then we price the risk.

One boundary: count only pipeline that can close inside this quarter. Your sales cycle decides what qualifies. With a 90-day cycle, a deal created in week six belongs to next quarter, not this one. Stuffing the whole CRM into this number produces a flattering forecast and a brutal quarter.

Defaults: a 25% win rate on qualified pipeline, 20% of expected wins slipping out of the quarter, and a $50,000 average deal. These are stated planning assumptions, not benchmarks. Set yours. Market context: B2B SaaS win rates have been drifting down across 2024 and 2025 (ICONIQ Growth, State of Go-to-Market 2025).

Coverage on the quarter.$9,000,000 pipeline ÷ $2,500,000 target
3.6x
Deals in the pipeline.$9,000,000 ÷ $50,000 average deal
180deals
Wins the averages expect.180 deals × 25% win rate
45deals
Slipping past the quarter.20% of $2,250,000 in expected wins
−$450,000
What the averages promise this quarter $1,800,000
Act 2 · The Confidence Bar

The number you can defend at 90% confidence.

An average is a promise about many quarters. You only get this one. With a finite number of deals in play, luck alone swings the outcome by hundreds of thousands of dollars in either direction. A board-grade forecast subtracts the luck before it gets committed.

The average sales organization closes only 48.2% of deals as originally forecast and wins 46.9% of forecasted deals (CSO Insights, World-Class Sales Practices Study). Half of a typical commit is weather. The 90% confidence number is the part that is not.

The swing luck builds into your quarter.√(180 deals × 25% × 75%)
±5.8deals
That swing, priced.5.8 deals × $50,000 × 80% in-quarter
±$232,379
Wins you can count on, 9 quarters in 10.45 expected − 1.28 × 5.8 swing
37.6deals
Your bankable number $1,502,183
Act 3 · The Coverage Test

The 3x rule retired. Your coverage target didn't notice.

Three dollars of pipeline for every dollar of quota assumed a 33% win rate. The market stopped paying that rate years ago. Your real requirement is not folklore, it is your own conversion math, plus a buffer for variance.

ICONIQ Growth's State of Go-to-Market 2025 put median pipeline coverage near 3.6x and flagged that at current win rates, that coverage no longer carries the forecast. The defaults on this page start you at exactly that median, on purpose.

What the folklore says you need.3.0 × $2,500,000 target
$7,500,000
What your math requires at 90% confidence.5.8x coverage at your win and slip rates
$14,382,409
What you are holding.3.6x coverage today
$9,000,000
Pipeline missing at 90% confidence $5,382,409
Act 4 · The Verdict

The verdict on the number you sent upstairs.

Reliability is one division: the revenue you can defend at 90% confidence, over the revenue you committed. Above 100%, the forecast holds. Below it, you are spending credibility you have not earned yet.

Bankable number
$1,502,183
90% confidence, slip-adjusted
Committed forecast
$1,400,000
the number you sent upstairs
Forecast reliability
107.3%
bankable ÷ commit. Above 100% holds
Gap to target
$997,817
against the $2,500,000 target
Annualized exposure
$3,991,268
this gap, four quarters running
Required coverage
5.8x
you are holding 3.6x

Bankable

Your commit clears the 90% bar with room to spare. The forecast is honest.

Act 5 · The Install

A reliable forecast is an installed system.

The bankable number does not rise because anyone forecasts harder. It rises when more of the same pipeline converts: tighter qualification, deal inspection that catches drift early, follow-up that does not leak. Conversion is a system, and a system moves the floor, not just the average.

Net conversion lift from the installed system+25%

A 25% lift means a win rate of 25% becomes 31%. Because the lift raises the floor as well as the average, the 90% confidence number climbs faster than the expected value does. For scale: the last time this system was installed at scale, close rate went from 3.0% to 11.2% over four years. A 25% lift is the conservative case. The pipeline stays the same. The floor under it does not.

Your bankable number today$1,502,183
Gap to target at +25% conversion$568,794
Bankable revenue after the system is installed
$1,931,206

$429,023 more defendable revenue every quarter, $1,716,092 across a year. The gap to target narrows from $997,817 to $568,794.

Hope is not a forecast. A system is.