Estimate your SNGPL or SSGC bill before it arrives. Works on the current OGRA domestic tariff with the one preceding-slab benefit, fixed charges and GST — the same method both companies use.
Your gas use is printed on your bill as "Units Consumed (Hm3)".
Madad: Bill par likha "Hm3" wala number yahan dalen aur apni qisam (protected / non-protected) chunein — poora hisaab slab ke sath neeche aa jayega.
| Case | Math | Total |
|---|---|---|
| Protected, 0.40 hm³ | 1.400 MMBtu: first 0.875 MMBtu @ Rs 200 = 175.00, rest 0.525 @ Rs 250 = 131.25 → energy 306.25; + fixed 600 + rent 40 = 946.25; GST 18% = 170.33 | Rs 1,116.58 |
| Non-protected, 1.20 hm³ | 4.200 MMBtu: first 3.500 MMBtu @ Rs 1,250 = 4,375.00, rest 0.700 @ Rs 1,450 = 1,015.00 → energy 5,390.00; + fixed 1,500 + rent 40 = 6,930.00; GST 18% = 1,247.40 | Rs 8,177.40 |
| Non-protected, 1.51 hm³ | 5.285 MMBtu: first 5.250 @ Rs 1,450 = 7,612.50, rest @ Rs 1,900 = 66.50 → energy 7,679.00; fixed jumps to 3,000; + rent 40; GST 18% | Rs 12,648.42 |
Try the same numbers in the calculator above — they match. For the complete slab tables, see the gas tariff page; to convert between units, use the hm³ to MMBtu converter.
No time to type? These totals are the same calculator's answers at common usage levels (fixed charge, meter rent and GST included; arrears and adjustments excluded):
| Use (hm³) | Protected | Non-protected |
|---|---|---|
| 0.25 | Rs 961.70 | Rs 2,333.45 |
| 0.50 | Rs 1,219.83 | Rs 3,211.07 |
| 0.90 | Rs 1,932.25 | Rs 5,472.25 |
| 1.50 | — | Rs 9,973.95 |
| 2.00 | — | Rs 16,493.45 |
| 3.00 | — | Rs 32,910.20 |
Above 0.9 hm³ there is no protected total — a winter average above that level ends protected status, which is why keeping your winter average low is worth real money.
Your meter reading in hm³ is converted to MMBtu (1 hm³ ≈ 3.5 MMBtu). The gas is charged on the OGRA slab for your total use, with the benefit of one preceding slab: gas up to the previous slab's limit is billed at the previous, cheaper rate. Then the fixed charge (Rs 600 protected; Rs 1,500 or Rs 3,000 non-protected), Rs 40 meter rent and 18% GST are added.
Domestic consumers get the benefit of exactly one slab below the slab their use falls in. Example: at 1.5 hm³ the first 1.0 hm³ is charged at Rs 1,250 per MMBtu and only the remaining gas at Rs 1,450. Above 4 hm³ there is no benefit — everything is charged at Rs 4,200 per MMBtu.
You are protected if your average monthly use across the four winter months (November to February) is 0.9 hm³ or less. Protected consumers pay much lower slab rates (Rs 200–350 per MMBtu) and a Rs 600 fixed charge. Your category is printed on your bill.
Two cliffs exist: crossing a slab boundary moves the "preceding slab" up too, raising the rate on most of your gas; and crossing 1.5 hm³ doubles the non-protected fixed charge from Rs 1,500 to Rs 3,000. At 1.51 hm³ a non-protected bill is about Rs 2,674 higher than at 1.50 hm³.