How this Langar planner works
The calculator turns your guest count, portion sizes, and ingredient prices into a practical production plan.
It is designed for quick scenario planning: you can compare a regular Sunday Langar to a larger festive event by changing only a few inputs.
What you will get
- Ingredient requirements in kilograms for rice, dal, vegetables, flour (for roti), halwa ingredients, and salad items.
- Cost breakdown by item plus a total cost and cost per guest.
- Volunteer/logistics indicators such as recommended volunteers, guests per volunteer, and guests per kitchen spot per hour.
Model assumptions (important)
- Portions are per person and entered in grams (except roti, which is “rotis per person”).
- Grams → kilograms conversion: quantity (kg) = guests × portion (g) ÷ 1000.
- Roti flour assumption: the model assumes 150 g flour per roti (this is a simplifying estimate; your kitchen may use less).
- Prices are per kilogram for rice, dal, vegetables, flour, and halwa ingredients. “Other supplies & spices” is a flat amount.
- Waste/buffer: outputs are base quantities. Many kitchens add 10–15% for waste, seconds, and unexpected guests.
Formulas used
For each ingredient measured in grams per person:
Quantity (kg) = Expected guests × Portion (g/person) ÷ 1000.
Cost is then Quantity (kg) × Price ($/kg).
For roti flour, the calculator uses:
Flour (kg) = Expected guests × Rotis per person × 150 (g/roti) ÷ 1000.
Volunteer guidance is intentionally simple:
Recommended volunteers = max(6, ceil(guests ÷ 30)).
Throughput is estimated as guests ÷ (service hours × kitchen spots).
Worked example (realistic)
Suppose you are planning a Weekly Sunday Langar for 300 guests with these portions: rice 80 g, dal 100 g, vegetables 150 g,
halwa 100 g, salad 75 g, and 2 rotis per person.
- Rice: 300 × 80 ÷ 1000 = 24.0 kg
- Dal: 300 × 100 ÷ 1000 = 30.0 kg
- Vegetables: 300 × 150 ÷ 1000 = 45.0 kg
- Flour (roti): 300 × 2 × 150 ÷ 1000 = 90.0 kg (adjust if your roti size is smaller)
- Halwa: 300 × 100 ÷ 1000 = 30.0 kg
- Salad: 300 × 75 ÷ 1000 = 22.5 kg
If your prices are $1.50/kg rice, $2.00/kg dal, $2.50/kg vegetables, $1.00/kg flour, $4.00/kg halwa ingredients, plus $50 other supplies,
the estimated total is:
24×1.5 + 30×2 + 45×2.5 + 90×1 + 30×4 + 50 = $468.50.
That is about $1.56 per guest.
Planning tips for Langar seva
- Confirm your portion standard (especially roti size) and keep it consistent across events.
- Check capacity: large quantities may require multiple pots, burners, and holding containers.
- Food safety: plan for handwashing, safe temperatures, and clean serving practices.
- Volunteer roles: assign clear teams (prep, cooking, roti, serving, dishwashing/cleanup) to reduce bottlenecks.
Limitations
This is a planning estimator. It does not model detailed recipes (oil/ghee, onions, spices by dish), regional menu variations, or exact cooking yields.
Use it to size purchases and staffing, then adjust based on your kitchen’s experience.
Understanding Sikh Langar service
What is Langar? Langar is a fundamental Sikh practice of community service and equality. It is a free, vegetarian communal meal served to all visitors to the Gurdwara (Sikh place of worship), regardless of caste, creed, religion, ethnicity, or economic status. The serving of Langar embodies the Sikh principle of Pangat (sitting together), where everyone eats together as equals.
Key principles of Langar
Langar is rooted in three core Sikh values:
- Equality (Pangat): rich and poor sit together, sharing the same meal.
- Community service (Seva): volunteers prepare and serve food without payment.
- Hospitality: all are welcomed regardless of background.
Traditional Langar menu (typical portions)
Many Gurdwaras keep the menu simple and consistent to make purchasing and prep predictable.
The table below shows common items and portion sizes that align with the default inputs in this calculator.
| Course |
Typical item |
Portion size |
Notes |
| Grain |
Rice or roti/chapati |
80 g rice or 2 rotis |
Core carbohydrate; often served to everyone. |
| Protein |
Dal (lentil curry) |
100 g per person |
Seasoning varies; dal is a key staple. |
| Vegetable |
Vegetable curry (sabzi) |
150 g per person |
Common: potatoes, peas, cabbage, cauliflower. |
| Dessert |
Halwa (semolina sweet) |
100 g per person |
Often made with ghee, semolina, sugar. |
| Salad |
Fresh vegetables & pickled items |
75 g per person |
Onions, cucumber, lemon, achar, etc. |
Volunteer roles in Langar service
Successful Langar usually needs a mix of roles. For planning, consider:
- Cooking team: rice, dal, vegetables, halwa (often 5–7 people depending on scale).
- Roti makers: knead dough, roll, and cook rotis (2–4 people; more for large crowds).
- Service station staff: serve food to guests at stations (4–8 people).
- Salad & dessert: prepare and serve halwa, salad, accompaniments (2–3 people).
- Cleanup team: clear plates, wash dishes, clean dining area (3–6 people).
Important considerations & limitations
- Dietary accommodations: this calculator assumes a standard vegetarian menu; allergies and special diets require adjustments.
- Regional variations: menus vary by tradition and occasion; update portion sizes to match your practice.
- Seasonal availability: vegetable prices and availability vary; update prices for your suppliers.
- Waste factor: consider adding 10–15% to quantities for safety and unexpected guests.
- Volunteer efficiency: service speed depends on experience and layout; use throughput as a rough indicator.
- Kitchen equipment: large events may require industrial pots, burners, and hot-holding capacity.
- Food safety: follow local health guidance for safe temperatures, hygiene, and storage.
- Funding: many Gurdwaras fund Langar through community donations (Dasvandh); track costs to plan responsibly.
