LPG (Liquefied Petroleum Gas) is used by nearly every Indian household for cooking. Whether you use a 14.2 kg domestic cylinder or a 5 kg cylinder, understanding how to calculate the cost per day, cost per meal, and how long your cylinder will last is something every Indian family needs to know.
This guide teaches you how to calculate LPG gas cost for any usage pattern, explains the difference between domestic and commercial cylinders, and helps you plan your monthly gas budget accurately.
Important note on LPG prices: LPG cylinder prices in India are revised by oil marketing companies on the 1st of every month. Prices also vary by city. This guide uses example prices to teach you the formula. Always check today’s current price at your local gas agency or by searching “LPG cylinder price today [your city]” on Google before budgeting.
How to Check Today’s LPG Cylinder Price
Before any calculation, get today’s actual price:
- Google: Search “LPG cylinder price today [your city]”
- Oil company websites: Indane (indianoil.in), HP Gas (hindustanpetroleum.com), Bharat Gas (ebharatgas.com)
- SMS service: Send SMS to your gas agency number
- Your gas delivery person: Ask when ordering the next cylinder
- Government portal: mylpg.in shows current subsidised prices
Understanding LPG Cylinder Types in India
Before calculating, understand which cylinder type applies to you.
Domestic LPG Cylinder — 14.2 kg
- Used by household consumers for cooking
- Subsidised by the government for registered consumers
- Each household is entitled to a limited number of subsidised cylinders per year
- This is what most Indian families use
Domestic Small Cylinder — 5 kg
- Smaller version for small families, bachelors, and portable use
- Available from all major gas companies
- Easier to handle and refill more frequently
- Price is proportionally similar to 14.2 kg cylinder
Commercial LPG Cylinder — 19 kg
- Used by restaurants, dhabas, hotels, caterers, and commercial kitchens
- Not subsidised — priced at market rate
- Significantly more expensive per kg than domestic cylinders
Industrial Cylinders — 35 kg and 47.5 kg
- Used by large commercial establishments
- Priced at full market rate
The Formula — Calculate LPG Cost Per Day and Per Month
Cost per day = Cylinder price ÷ Number of days the cylinder lasts
Cost per meal = Cylinder price ÷ Total number of meals cooked
Cylinder lifespan = Weight of cylinder (kg) ÷ Daily gas consumption (kg per day)
Examples — Let Us Say Today’s LPG Price Is ₹X
Since LPG prices change monthly and vary by city, we use example prices. Replace with today’s actual price from Google or your gas agency.
Let us say today’s 14.2 kg domestic cylinder price is ₹900 (example only — check actual price):
How Long Will the Cylinder Last?
Average LPG consumption for Indian families:
| Family Size | Daily Consumption | Cylinder Lasts |
|---|---|---|
| 1-2 people (bachelor/couple) | 0.3-0.4 kg/day | 35-47 days |
| Small family (3-4 people) | 0.5-0.6 kg/day | 24-28 days |
| Medium family (4-6 people) | 0.6-0.8 kg/day | 18-24 days |
| Large family (6+ people) | 0.8-1.0 kg/day | 14-18 days |
Formula: Days = 14.2 kg ÷ Daily consumption
Example for small family using 0.55 kg/day: Days = 14.2 ÷ 0.55 = 25.8 days ≈ 26 days
Cost Per Day Calculation
Formula: Cost per day = Cylinder price ÷ Days the cylinder lasts
If cylinder is ₹900 and lasts 26 days: Cost per day = 900 ÷ 26 = ₹34.6 per day
If cylinder is ₹900 and lasts 40 days: Cost per day = 900 ÷ 40 = ₹22.5 per day
Cost Per Month Calculation
Formula: Monthly cost = Cost per day × 30
At ₹34.6 per day: Monthly gas cost = 34.6 × 30 = ₹1,038 per month At ₹22.5 per day: Monthly gas cost = 22.5 × 30 = ₹675 per month
Alternatively: Monthly cost = (Cylinder price × 12) ÷ Number of cylinders per year
Complete Cost Calculator — Different Cylinder Prices
Using example cylinder price of ₹900 — replace with today’s actual price:
For a Cylinder Lasting 20 Days
| Cylinder Price | Cost Per Day | Cost Per Month |
|---|---|---|
| ₹700 (example) | ₹35/day | ₹1,050/month |
| ₹800 (example) | ₹40/day | ₹1,200/month |
| ₹900 (example) | ₹45/day | ₹1,350/month |
| ₹1,000 (example) | ₹50/day | ₹1,500/month |
For a Cylinder Lasting 30 Days
| Cylinder Price | Cost Per Day | Cost Per Month |
|---|---|---|
| ₹700 (example) | ₹23.3/day | ₹700/month |
| ₹800 (example) | ₹26.7/day | ₹800/month |
| ₹900 (example) | ₹30/day | ₹900/month |
| ₹1,000 (example) | ₹33.3/day | ₹1,000/month |
The monthly cost equals the cylinder price when the cylinder lasts exactly 30 days — a useful mental shortcut.
Domestic vs Commercial Cylinder — Price Per kg Comparison
This is an important comparison for small restaurant and dhaba owners deciding between domestic and commercial cylinders.
Formula: Price per kg = Cylinder price ÷ Cylinder weight
Example — If domestic 14.2 kg cylinder is ₹900: Price per kg = 900 ÷ 14.2 = ₹63.4 per kg
Example — If commercial 19 kg cylinder is ₹1,800: Price per kg = 1,800 ÷ 19 = ₹94.7 per kg
This shows domestic gas is significantly cheaper per kg — which is why some small food vendors illegally use domestic cylinders commercially. This is against the law and dangerous — commercial establishments must use commercial cylinders.
Annual LPG Budget Calculator
Formula: Annual cost = Number of cylinders per year × Price per cylinder
To find cylinders per year: Cylinders per year = 365 ÷ Days each cylinder lasts
Example — Cylinder lasts 25 days, price ₹900: Cylinders per year = 365 ÷ 25 = 14.6 cylinders Annual cost = 14.6 × 900 = ₹13,140 per year
Example — Cylinder lasts 35 days, price ₹900: Cylinders per year = 365 ÷ 35 = 10.4 cylinders Annual cost = 10.4 × 900 = ₹9,360 per year
The difference between a household that uses gas efficiently and one that wastes it can be ₹3,000-5,000 per year on the same cylinder price.
LPG Subsidy in India — How It Works
The Indian government provides LPG subsidy to eligible households under the Pradhan Mantri Ujjwala Yojana and the regular domestic consumer scheme.
How Subsidy Works
- You pay the full market price when booking a cylinder
- The subsidy amount is transferred directly to your bank account linked to Aadhaar within a few days
- The net cost to you = Cylinder price paid − Subsidy received
Who Gets Subsidy
- BPL (Below Poverty Line) households under Ujjwala Yojana
- Regular domestic consumers with annual income below a certain threshold
- High-income households (above ₹10 lakh annual income) are not eligible for subsidy
How to Check Your Subsidy Amount
- Log in to your gas company’s app or website
- Check your linked bank account for the transfer
- Call your gas agency and ask about current subsidy rates
How to Use RateCalc for LPG Cost Calculations
While LPG calculation involves division rather than multiplication, RateCalc.in can help with related gas cost calculations — the same way it helps calculate petrol price per litre or milk price per litre.
Finding cost per day:
- Known Price: ₹900 (cylinder price), Known Quantity: 25 (days it lasts)
- Select “Find Price” mode — New Quantity: 1 day
- Result: ₹36 per day
Finding how many days a cylinder lasts at your usage:
- Known Price: ₹900, Known Quantity: 14.2 kg
- Select “Find Quantity” mode — New Price: your daily usage cost
- Get the proportional result instantly
Tips to Make Your LPG Cylinder Last Longer
Every extra day you get from a cylinder saves money. Here are proven ways to reduce LPG consumption:
1. Use a pressure cooker A pressure cooker uses up to 50% less gas than an open pot for the same dish. If you cook dal, rice, or vegetables in an open vessel — switching to a pressure cooker can extend your cylinder life by 5-8 days.
2. Keep burner flames at medium High flames do not cook food faster — they just waste gas. Food cooks at the same speed on medium flame for most dishes. Use high flame only for boiling water or initial high-heat cooking.
3. Cover pots and pans while cooking Covered cooking retains heat better and reduces cooking time by 20-30%. Less cooking time means less gas consumed.
4. Pre-soak dal and pulses Soaking dal and rajma for 4-6 hours before cooking reduces their cooking time significantly. This saves meaningful gas over hundreds of cooking sessions.
5. Match the pot size to burner size Using a small pot on a large burner wastes heat around the sides. Match the pot base diameter to the burner size for efficient heat transfer.
6. Clean burners regularly Clogged burner holes create uneven, inefficient flames. Clean burners monthly with a pin or needle to ensure all holes are clear and the flame burns evenly.
7. Do not keep gas on when not actively cooking Many people keep the burner on low while waiting between cooking steps. Turn it off completely and reignite when needed — gas still burns during idle low-flame periods.
8. Thaw frozen food before cooking Cooking frozen food directly takes much more gas. Thaw at room temperature or in the refrigerator first.
LPG Safety Tips Every Indian Household Should Know
Check for gas leaks regularly Apply soap water around the regulator and hose connections. If bubbles form, there is a leak. Never use a lighter or match to check for gas leaks.
Keep cylinders upright always LPG cylinders must always be stored and used upright. Never tilt, roll, or lay the cylinder on its side.
Ventilate your kitchen Always cook with a window or exhaust fan open. LPG combustion consumes oxygen and releases carbon monoxide — adequate ventilation is essential for health and safety.
Replace rubber hose every 2 years The rubber hose connecting your cylinder to the stove degrades over time. Replace it every 2 years regardless of appearance.
Book cylinders through official channels only Never buy cylinders from unauthorised sources. Always book through Indane, HP Gas, or Bharat Gas official portals, apps, or phone numbers.
Know your emergency numbers
- Indane Gas emergency: 1906
- HP Gas emergency: 1906
- Bharat Gas emergency: 1906 (Same national emergency number for all)
For Small Restaurants and Dhaba Owners — Commercial Cylinder Cost Calculation
If you run a small dhaba, tea stall, or restaurant, LPG is one of your biggest daily expenses. Knowing your exact gas cost per dish or per customer helps you price your menu correctly.
Formula: Gas cost per dish = (Cylinder price ÷ Number of dishes per cylinder)
Example — Commercial 19 kg cylinder at ₹1,800 (example price):
If you cook approximately 150 dishes per cylinder: Gas cost per dish = 1,800 ÷ 150 = ₹12 per dish
If you cook approximately 200 dishes per cylinder: Gas cost per dish = 1,800 ÷ 200 = ₹9 per dish
This is a crucial cost for menu pricing that most small food business owners never calculate — just as understanding the kirana store price calculator helps shop owners price their items correctly.
Monthly gas cost for a small dhaba: If you use 20 commercial cylinders per month at ₹1,800 each: Monthly gas cost = 20 × 1,800 = ₹36,000 per month
Tracking this number monthly tells you immediately if your gas usage is increasing and helps you identify waste.
Frequently Asked Questions
Q: How do I calculate cost per day for my LPG cylinder? A: Divide the cylinder price by the number of days it lasts. If cylinder is ₹900 and lasts 30 days: ₹900 ÷ 30 = ₹30 per day.
Q: How long does a 14.2 kg LPG cylinder last for a family of 4? A: Typically 20-28 days for a family of 4 depending on cooking habits. Families that cook 3 meals daily use more gas than those who cook 2 meals.
Q: What is today’s LPG cylinder price in my city? A: Search “LPG cylinder price today [your city]” on Google — prices are updated on the 1st of every month.
Q: How much does LPG cost per kg in India? A: Divide your cylinder price by the cylinder weight (14.2 for domestic). At ₹900 for a 14.2 kg cylinder: ₹900 ÷ 14.2 = ₹63.4 per kg.
Q: Is there a free calculator for LPG cost calculation? A: Yes — RateCalc.in is free and works offline. Use it to calculate proportional costs — enter cylinder price and days it lasts to find daily cost instantly.
Q: How can I reduce my LPG consumption? A: Use a pressure cooker, cover pots while cooking, use medium flames, and clean burners regularly. These simple steps can extend cylinder life by 20-30%.
Q: What is the difference between domestic and commercial LPG? A: Domestic 14.2 kg cylinders are subsidised for household cooking. Commercial 19 kg cylinders are unsubsidised, priced at market rate, and meant for restaurants and businesses.
Q: How do I know if my LPG subsidy is being credited? A: Check your Aadhaar-linked bank account after each cylinder booking. The subsidy is credited directly within a few days of delivery.
Conclusion
Calculating your LPG cost in India is simple:
Cost per day = Cylinder price ÷ Days the cylinder lasts Monthly cost = Cost per day × 30
Knowing your daily gas cost helps you budget accurately, identify when you are consuming more than usual, and make informed decisions about cooking habits.
Always check today’s cylinder price on Google or your gas company’s website on the 1st of every month when prices are revised. Then use the formula to calculate your exact daily and monthly gas expense.
For related price calculations — whether it is petrol cost per litre, milk price per litre, or grocery prices at your kirana store — RateCalc.in gives you instant answers for free, without mental math, and works offline too.
LPG prices are revised on the 1st of every month. Always check the current rate before budgeting.