GrowthStack Advisory / Free tools
Free tools for B2B outbound teams
Calculators and scorecards for planning B2B outbound: how much activity a revenue target needs, whether an A/B test result is real, and which parts of your motion are ready to scale.
Calculators
Both work from the numbers you enter.
Pipeline capacity calculator
Work backwards from a revenue target to the meetings, replies, prospects, touches and SDR headcount it requires. Cross-checks itself against implied SQLs per rep per month.
Cold email A/B test calculator
Enter sends and replies for two variants. Tells you whether the difference is real yet, and how many more sends you need to know. Pooled two-proportion z test.
Scorecards and pickers
Each sits inside the guide that explains its result.
Outbound readiness scorecard
Twelve yes or no checks across targeting, messaging, execution and measurement, graded before a cold email programme goes live.
Outbound model fit scorecard
Eight questions that weigh your situation across an SDR agency, an in-house hire and a fractional engagement, and show where you land.
Sales tool stack picker
Five questions about your team, motion and stage. Builds a starting stack and flags where you would be buying ahead of yourself.
MQL to SQL conversion calculator
Shows what a change in the qualification rate is worth in deals and revenue, on the same lead volume and the same spend.
Terms these tools use
- Reply rate. Replies divided by emails delivered, counted per sequence. Opens are not used, because image pre-fetching has inflated them since 2021.
- Statistical significance. Whether the gap between two rates is larger than random variation would produce. The A/B test calculator checks it with a pooled two-proportion z test.
- SQL (sales qualified lead). A lead a rep has spoken to and accepted against written qualification criteria.
- MQL to SQL conversion rate. SQLs divided by MQLs, multiplied by 100, counted over the same cohort of leads. The full guide.
- Show rate. Meetings held divided by meetings booked.
- Pipeline capacity. The touches, prospects, replies, meetings and SDR headcount a revenue target requires, worked backwards from the number of deals.
- SOM (serviceable obtainable market). The share of the market you can serve that your team can realistically win in a stated period, built from capacity and win rate.
Who these are built by
The logic in each tool comes from running the work. Shobhit Gupta scaled GoComet's SDR team from 10 to 23 people across the US, India and South East Asia, and led global sales development at Locus, where Ruchi Mittal ran inside sales. The qualification and conversion logic comes from engagements with Easyship, ConvertCart, WorkStore and NuVista AI.
Reading the results
If the pipeline calculator returns more headcount than you can hire, the plan needs a higher reply or conversion rate, a longer timeline or a smaller target. If the A/B test calculator says the result is not significant yet, keep sending until it reaches the sample it shows, or accept that the difference is too small to matter.
The guides behind each tool explain what to do about it. All guides and resources covers the method in full, pricing explains how engagements are structured, and a call is the fastest way to work out which of these problems you actually have.
A third calculator lives inside its guide rather than on its own page: the TAM, SAM and SOM calculator builds an obtainable market figure from team capacity and win rate.
Written with AI assistance from Shobhit Gupta’s notes and client work, then reviewed and edited by Shobhit Gupta on .