Real capacity depends on when reps start, how long they ramp, and who leaves. QuotaMath walks your year month by month — so the number you take to the board is one finance will sign. This is a free sales capacity planning calculator: no signup, no email gate.
Annual new-business target, fully-ramped reps today, and quota per rep.
Use your trailing 12-month attainment — the B2B median is 50–70%, not 100%.
Hires per quarter and your annual rep attrition rate. Both move the answer more than you think.
Coverage tells you if the plan works; the walk shows when capacity actually arrives.
Ignores ramp and attrition. Overstates capacity all year — the miss shows up in Q4.
Closer on the full year, but hides quarterly timing misses and hiring deadlines.
What this calculator does: ramped reps, ramping hires, and attrition — walked across all 12 months.
Existing reps produce quota × attainment ÷ 12 each month — reduced pro-rata as attrition bites.
A Q1 hire is worth ≈75% of a full rep-year. A Q3 hire? ≈25%. Hiring timing is half the plan.
The shortfall is expressed in ramped-rep-years — the language a CRO can actually hire against.
Working out how much revenue your team can actually produce — given headcount, quotas, realistic attainment, ramp time, and attrition — and comparing it to target to decide how many reps to hire, and when. Effective capacity is almost always lower than reps × quota.
B2B median is 50–70%. The calculator defaults to 70% — deliberately on the optimistic side of the benchmarks. If your board deck assumes 100%, that is the first fix.
SMB 3–4 months, mid-market 4–6, enterprise 6–9+. The Bridge Group pegs the cross-segment average at 5.7 months. More in the ramp-time benchmarks.
Ramp is paid up front. On a 5-month ramp, a January hire contributes ≈83% of a rep-year; hired in October, ≈10%. Two identical headcount plans can differ by millions purely on start dates. The full math is in the capacity formula guide.
Month by month: existing reps contribute quota × attainment ÷ 12, reduced pro-rata by attrition; new hires contribute on a linear ramp curve from their start month. Defaults are anchored to published benchmarks — Bridge Group SaaS AE research (5.7-mo ramp, 30% turnover, 51% of AEs at quota) and RepVue's Q2 2025 Cloud Sales Index (≈43% attainment, n≈47,000). The same engine powers the Excel model.
Nowhere. The calculator runs entirely in your browser — no data leaves the page, no email required.