Inputs
Results
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Colony Snapshot
- Adults: 0
- Emerging next 12d: 0
- Foragers: 0
- Forager ratio: 0
Production & Storage
- Daily honey (kg): 0
- Current honey (kg): 0
- Frames needed: 0
- Super capacity (kg): 0
Feeding & Reserves
- Reserve days: 0
- Feed needed (kg): 0
- Syrup required (L): 0
- Pollen reserves (kg): 0
Health & Risk
- Mites /100 bees: 0
- Swarm risk: 0
- Queen age (months): 0
- Flight days next 14d: 0%
Interpretation
Enter inputs and press Calculate to see insights.
Example Data Table
| Date | Colony | Adults | Emerging | Foragers | Daily Honey (kg) | Honey Frames | Syrup Needed (L) | Swarm Risk | Notes |
|---|---|---|---|---|---|---|---|---|---|
| 2025-03-15 | Spring-1 | 24000 | 21000 | 7920 | 3.96 | 8 | 12.5 | 28 | Acacia bloom strong |
| 2025-04-02 | Spring-1 | 28000 | 18900 | 9240 | 4.62 | 10 | 8.9 | 22 | Light feeding stopped |
Formula Used
- Adults ≈
adult_bees_per_frame × (brood_frames + honey_frames + pollen_frames) - Emerging (12d) ≈
bees_per_brood_frame × brood_frames × brood_survival - Foragers ≈
forager_fraction × Adults - Daily honey (kg) ≈
(Foragers × honey_per_forager_g × flow_factor × flight_modifier × floral_modifier × (1−obstacle)) ÷ 1000 - Current honey (kg) ≈
honey_frames × kg_per_honey_frame - Extra frames needed ≈
max(0, ceil((reserve_honey − current_honey) ÷ kg_per_honey_frame)) - Forage area (km²) ≈
π × radius² - Queen output (adults/day) ≈
laying_rate × brood_survival - Pollen reserves (kg) ≈
pollen_frames × kg_per_pollen_frame - Reserve days covered ≈
current_honey ÷ winter_rate - Feed required (kg) ≈
max(0, reserve_honey − current_honey) - Syrup volume (L) ≈
feed_required_kg ÷ syrup_density - Swarm risk (0–100) composites
queen_age, swarm_cells, brood_frames, forager_ratio - Honey capacity ≈
super_count × frames_per_super × kg_per_honey_frame × (fill_pct ÷ 100)
Heuristic planning estimates only. Local conditions, subspecies, and management choices will change actual outcomes.
How to Use
- Enter inspection data and frame counts.
- Open Advanced Options to model feeding, capacity, and risks.
- Press Calculate to compute KPIs and interpretations.
- Export CSV for spreadsheets or PDF for quick reporting.
- Update notes with bloom sources, weather, and interventions.
Session Log
| # | Date | Colony | Adults | Foragers | Daily Honey (kg) | Current Honey (kg) | Frames Needed | Reserve Days | Syrup (L) | Swarm Risk |
|---|
Bee Calculator Report
FAQs
1) How accurate are these estimates?
They are planning heuristics. Frame counts, subspecies, nutrition, weather, disease pressure, and equipment strongly influence real outcomes. Use local records to tune parameters, then compare predicted and observed values to calibrate assumptions each season.
2) What does nectar flow factor represent?
It scales surplus production relative to a normal bloom. A value below one reflects weak flow; values above one reflect strong flow. Adjust using local bloom reports and your inspection notes across weeks.
3) How should I pick adult bees per frame?
Start with 2,000 as a middle estimate for a deep frame covered both sides. Reduce for sparse frames or cool days. Increase for dense clusters on warm, active days.
4) When do I need supplemental feeding?
If current honey reserves in kilograms divided by winter use rate provide fewer days than your target period, plan feeding. The calculator shows feed required and syrup liters based on your chosen mix.
5) What increases swarm risk in this model?
Older queens, visible swarm cells, many brood frames, and a high forager ratio raise risk. Manage with space, splits, or requeening. Always confirm by inspecting queen cells and congestion signs.