Gender Testing Cost Calculator

Your Grow basics

Number of plants (from seed)

Expected male rate % — default 50% from seed

Weeks until natural sex expression typically 5–6 in flower

One-Time Costs per Plant paid regardless of sex

Growing medium

Final container 3–7 gal

Earlier containers seedling vessel + 1-gal pot

Weekly Ongoing Costs per plant

Grow light

Plants per light override if needed — 5–8 typical for HLG 650R

Electricity rate $/kWh — national avg $0.12–$0.17

Nutrients

Water per plant per week gallons, early veg avg

Water cost per gallon $/gal — national avg ~$0.008

HVAC / climate — total per week $ for your space — 0 if unknown

⏱ Time Value / Labor applies to all growers

Home growers: enter what your time is worth to you. Commercial growers: enter your actual labor rate. Cultivation jobs average $20–$30/hr.

Hourly rate $/hour — your time value or paid labor

Time spent per plant per week minutes — e.g. 4 hrs/wk ÷ 10 plants = 24 min

🔬 Farmer Freeman Testing

Week to collect samples from start of grow — rec. week 2

Shipping method

Test pricing tier

All tests include DNA sex identification via mail-in sample.
Results in 3 business days from lab receipt.

Revenue Impact optional

Include revenue lost from male plants

Yield per female plant lbs — home ~0.3 lb, commercial ~0.5–1+ lb

Price per pound $ — your estimated value

By identifying males at week 3 instead of week 6, you can replant those spots with female clones or new seeds — recovering revenue that would otherwise be lost to wasted plant slots. This is why revenue loss only appears in Scenario A.

Quick Stats

Expected males

2.9

Weeks saved

$8.48

Cost/plant/wk

$4.90

Break-even $/wk

📊 Full Cost Comparison

❌ Scenario A — No Testing

Medium + containers (sunk)—

Ongoing cultivation costs—

TOTAL COST—

✅ Scenario B — With Testing

Medium + containers (sunk)—

Ongoing cultivation costs—

Farmer Freeman tests—

TOTAL COST—

🌿 Gender Testing Cost Calculator