How to Estimate a City Gas Bill
City gas bill = base charge + usage x rate per cubic meter. Using Tokyo Gas references (base 759 JPY, 130 JPY/m3), 30 m3 costs about 759 + 30 x 130 = 4659 JPY.
Open the interactive Everyday Lifestyle tool →Formula: bill = base + m3 x rate
Key facts
| Formula | bill = base + m3 x rate |
|---|---|
| Base charge | 759 JPY |
| Rate | 130 JPY/m3 |
| 30 m3 | 4659 JPY |
| City gas heat value | 45 MJ/m3 |
Frequently asked questions
How much is 30 m3 of city gas?
About 4659 JPY: base 759 + 30 x 130 (Tokyo Gas B-2 reference).
What is the heating value of city gas?
About 45 MJ/m3 for standard city gas (13A).
Is LP gas the same?
No. LP gas is priced per kg (about 600 JPY/kg) with a ~50.2 MJ/kg heat value.
Related pages
Gas Bill Calculator is part of Everyday Lifestyle on GOAT Lab — a free reference you can use without signing up, and it works offline. Open the tool above for any custom value.
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