Sales Forecast Calculator
Forecast MRR using growth and pipeline conversion assumptions.
Result
After 12 months MRR reaches $311,753.36: $126,720 from won deals (8.8 a month) and $105,033.36 from 5% monthly organic growth, which compounds on the deals too. Churn is not modelled, so treat this as gross new MRR.
Where the MRR at the horizon comes from
Monthly recurring revenue after 12 months.
How to use it
- Enter starting MRR, monthly organic growth, pipeline conversion rate, the new MRR each won deal adds (an annual contract divided by 12), new opportunities per month, and forecast months. Use historical close rates and current pipeline generation, not sales targets, because small assumption errors compound every month.
- Read projected MRR at the horizon, cumulative forecast revenue, the monthly pipeline contribution, and how much of the horizon MRR came from won deals versus organic growth. Churn is not modelled, so treat the result as gross new MRR. Pipeline conversion above 40% is flagged because it often produces a forecast that looks precise but is not grounded in real close performance.
- Separate growth driven by compounding from growth driven by pipeline volume. If most of the forecast lift comes from new opportunities times conversion times deal size, the forecast is mainly a sales-capacity bet rather than a durable momentum story.
- Build at least downside, base, and upside cases by moving conversion 5-10 points and opportunity volume 10-20%. Use the downside or base case for hiring and cash planning, and reserve the upside case for stretch goals or investor discussion.
- Re-run monthly as pipeline ages, close rates shift, or deal size changes. Compare forecasted MRR versus actual MRR each month so the model gets calibrated to your true win-rate behavior.
Questions people usually ask
What makes a forecast useful instead of fantasy?
Grounding it in real conversion, growth, or pipeline assumptions you can actually defend. A clean forecast is only as good as the drivers behind it.
Should I trust the total or the monthly path more?
Start with the monthly path. The timing of growth, slippage, and recovery often matters more than the final headline total.
Why should I run downside and upside cases?
Because one forecast number is not a plan. The range tells you how much risk you are really carrying.
Can this replace a full finance model?
No. It is best for fast planning, founder decisions, and scenario pressure-testing before you open a bigger model.
Is this tool free and private to use?
Yes. AI Biz Hub tools are free, no-signup browser tools. Inputs stay in your browser unless you choose to share a URL.
Is this professional advice?
No. Outputs are business planning estimates — not legal, tax, or accounting advice.
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Workflows that use this calculator
Background on the Sales Forecast Calculator
- Formula Sales Forecast Formula: Calculate Projected Revenue
The sales forecast model compounds starting MRR by monthly growth and adds pipeline (opportunities x conversion x deal size). See the formula and a worked MRR projection.
- Formula Startup Runway Formula
Calculate your startup's financial survival time. Learn how to use Cash On Hand and Monthly Burn to predict runway, make strategic decisions, and secure.
- Formula Payback Period Formula
Understand the Payback Period Formula to quickly assess investment recovery, important for managing your startup's financial runway at AI Biz Hub.
- Examples Sales Forecast Examples: 4 Worked SaaS Revenue Forecasts
Sales forecast examples: four worked SaaS revenue forecasts with a month-by-month table, showing how starting MRR, growth and pipeline conversion compound.
- Examples Startup Runway Examples
reveal actionable insights into startup runway calculations. Learn how diverse factors like revenue growth, inventory, grant milestones, and strategic.
- Examples Payback Period Examples
Explore practical payback period examples across diverse industries. Master this vital metric to assess project viability, manage investment risk.
Articles
- 11 min read Sales Forecast vs MRR Growth Projection: Solo Founder Pick
Sales forecast vs MRR growth projection compared: pipeline-driven against pure compounding. Solo founders rarely have pipeline — see which model lies.
- 8 min read How to Forecast Revenue
A bottoms-up revenue forecast that survives board scrutiny — pipeline coverage, booking-to-revenue timing, and the forecast-error band most founders skip.
- 8 min read How to Create Financial Projections (3-Statement Model)
Create a defensible 3-statement financial model driven by pipeline, retention, and headcount, then stress-test it with P50, P75, and downside scenarios.
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- Monthly Burn Rate Calculator
- Break-Even Units Calculator
- ROI + Payback Period Calculator
Use it from code
The same calculation as a JavaScript module you can import. It runs where you import it, with no request, key or rate limit.
import { compute } from "https://aibizhub.io/engines/sales-forecast-calculator.js";Input and output contract, TypeScript types and the guide for agents.