Calculator 11 • Headcount & Cash Runway
Startup Headcount & Hiring Runway Planner
Translate planned engineering, product, and GTM hires into fully-burdened monthly burn (payroll taxes, benefits, AI/SaaS tooling) and see exactly how many months of runway each hire costs.
1. Current Cash & Baseline Burn
2. Planned New Hires
Baseline Runway
35.3 mo
Before new hires
Post-Hire Runway
21.2 mo
-14.1 months
Added Monthly Burn
+$56,558
$678K/yr loaded
Cost Per Single Hire
$18,853/mo
-4.7 mo runway/hire
Fully-Burdened Headcount Breakdown
| Component | Monthly Impact | Annualized Run-Rate |
|---|---|---|
| Base Salaries (Eng + GTM) | $43,333 | $520,000 |
| Employer Taxes, Healthcare & Benefits Burden | $10,833 | $130,000 |
| AI Compute, Dev Tools & SaaS Seats | $1,350 | $16,200 |
| Total New Monthly Burn (Base + Hires) | $140,517 | $1,686,200 |