Sales Capacity Planning Calculator

How to use the sales capacity planning tool

Revenue target, deal size, rep productivity, ramp time. The output tells you how many to hire and when.

1. 01

   Enter your revenue target and average deal size

   Annual revenue target is the new ARR you need to close this year. Average deal size (ACV) is the mean value of a new customer contract. These two numbers determine how many deals you need to close.

2. 02

   Set rep productivity at full capacity

   Deals per rep per year is how many deals a fully ramped rep closes at 100% quota. If your quota is $500K and average deal is $25K, that's 20 deals/rep/year. Set quota attainment to your historical average – most B2B teams run 70–80%.

3. 03

   Set ramp time and rep cost

   Ramp time is the months before a new hire closes at their full quota rate. New reps are less productive during this period – the calculator accounts for this by requiring you to hire more heads than the fully-ramped model suggests. Annual rep cost includes salary, OTE (variable), and benefits.

4. 04

   Read the headcount output

   The results panel shows fully ramped reps needed (theoretical), reps to hire now (real, accounting for ramp), total sales payroll, and sales efficiency ratio. The hiring number is what you put in your board plan; the ramped number is what you'll have at the end of the year.

5. 05

   Review the 12-month ramp curve

   The table shows how your team's revenue capacity builds month by month as new hires ramp. Early months show low capacity; capacity accelerates once ramp is complete. Cumulative revenue capacity at month 12 is the maximum the team can deliver if everyone is hired on day 1.

Why use this calculator?

Related free tools

Who'll get the most out of this

• VP of Sales / CROBuilding a headcount plan that accounts for ramp time and quota attainment before presenting to the board.
• Founder / CEOUnderstanding how many sales hires you actually need to hit your revenue target this year.
• Revenue OperationsModeling capacity scenarios for annual planning – conservative, base, and aggressive headcount cases.
• CFO / FinanceStress-testing sales capacity assumptions and sales efficiency in the budget model.
• Investor / VCAuditing a portfolio company's go-to-market capacity plan against their ARR targets.

Frequently asked questions

• What is sales capacity planning and why does it matter?+

  Sales capacity planning is the process of calculating how many salespeople you need to hit a revenue target, accounting for realistic quota attainment, ramp time, deal size, and sales cycle length. It matters because most revenue targets are set top-down without verifying whether the existing team has the capacity to deliver them. Undercapacity means you'll miss the target; overcapacity means unnecessary payroll cost. This sales capacity planning calculator makes the math explicit.
• How do I calculate how many salespeople I need?+

  How to calculate how many salespeople you need: (1) Divide your revenue target by average deal size to get deals needed. (2) Calculate effective deals per rep per year = (annual quota ÷ deal size) × attainment rate. (3) Divide deals needed by effective deals per rep to get fully ramped headcount. (4) Adjust upward for ramp time: new hires hired today will only close at ~50% efficiency for the first [ramp months], so you need more heads than the ramped model suggests. This calculator automates all four steps.
• What is quota attainment and what's a realistic rate to use?+

  Quota attainment is the percentage of quota that reps actually close on average. If your quota is $500K ARR per rep and the team averages $375K, attainment is 75%. Industry benchmarks: 70–80% attainment is typical for B2B SaaS teams with well-calibrated quotas. Below 60% usually means quotas are too high or the market is harder than expected. Above 90% often means quotas are too low. Use your trailing 2–4 quarter average for planning accuracy.
• What is rep ramp time and how does it affect sales capacity?+

  Rep ramp time is the months before a new hire reaches full quota productivity. During ramp, new reps typically close at 20–50% of their eventual quota rate in month 1, building to 100% by month [ramp]. Common ramp benchmarks: 3 months for SDR/BDR roles, 4–6 months for AEs in SMB or mid-market, 6–9 months for enterprise AEs. The capacity impact: a rep with a 6-month ramp hired on January 1 contributes roughly 75% of a full year's quota in year one. This calculator models this by requiring more hires than the fully-ramped model suggests.
• What is sales efficiency ratio and what's a healthy benchmark?+

  Sales efficiency ratio = annual revenue target ÷ total annual sales payroll. It measures how much revenue each dollar of sales cost generates. Benchmarks: 4–6× for highly efficient inside sales teams (SMB, product-led). 2–4× for mid-market AE teams. 1–2× for enterprise field sales (high value, long cycle). Below 1× means your sales team costs more than it generates – a structural problem. This calculator shows your current efficiency ratio so you can benchmark before scaling headcount.
• How do I plan sales capacity for a new product or expansion market?+

  For a new product or market where you have no historical attainment data: use conservative attainment (60–70%) and longer ramp (6–9 months) to build in uncertainty. Model three scenarios – conservative (60% attainment, 9-month ramp), base (75% attainment, 6-month ramp), aggressive (85% attainment, 4-month ramp) – and present the range to your board. The sales capacity calculator makes running all three scenarios in under a minute straightforward.
• Should I hire all salespeople at once or stagger hiring?+

  The 12-month ramp curve in this calculator shows that reps hired at month 1 contribute substantially more revenue capacity in year one than reps hired at month 6. If cash allows, front-loading hiring maximizes year-one capacity. But most companies stagger hiring to manage cash flow: hire the first cohort in Q1, validate productivity and pipeline, then hire the second cohort in Q3. The table shows the cumulative capacity difference between a front-loaded and staggered plan.
• How do I calculate sales capacity if I have both SDRs and AEs?+

  Model each role separately and connect them. Step 1: calculate how many opportunities your SDR team can generate per month (SDR capacity × meetings set rate). Step 2: calculate how many opportunities each AE can work per month (based on sales cycle length and pipeline coverage). Step 3: check that SDR opportunity volume matches AE capacity. If SDRs can generate 50 opportunities per month but AEs can only close from 30, you're overstaffed on SDRs or understaffed on AEs. Run this calculator twice – once for the SDR layer and once for the AE layer.
• How does average deal size affect how many salespeople I need?+

  Average deal size has a direct inverse effect on headcount: halving your average deal size doubles the deals you need to close, which roughly doubles the headcount required. This makes deal size one of the most important variables in sales capacity planning. Enterprise-focused teams (high ACV, long cycles) need fewer reps but each rep is more expensive and slower to produce. SMB-focused teams (low ACV, short cycles) need more reps but productivity is higher per unit time.
• What's the difference between sales capacity planning and a sales forecast?+

  Sales capacity planning answers 'how many reps do we need to hit the target?' Sales forecasting answers 'how much will the current team close this quarter?' Capacity planning is a planning and hiring tool; forecasting is an operational and accountability tool. Both are necessary: capacity planning ensures you have enough headcount to make the target possible; forecasting tells you whether the team is tracking toward it. This calculator is a capacity planning tool – it works from the target backward to headcount, not from pipeline forward to revenue.