MJ to Units Converter - Megajoules to Kilowatt Hours for Indian Energy Bills

Convert megajoules (MJ) to kilowatt hours - or units, as they appear on every Indian electricity bill - instantly with our free online tool. Handy for PNG bills, LPG cylinders, geysers, and comparing gas with DISCOM tariffs. Get accurate MJ to kWh results in seconds.

Energy Unit Converter - Instant Calculation

1 mj = 0.2777777778 kwh

The quick answer for 1 Megajoules — type any value below for the exact result

Enter Megajoules

Megajoules

Result in Kilowatt Hours

kwh

Kilowatt Hours

MJ to kWh Conversion Formula

To convert megajoules to kilowatt hours - units, on an Indian electricity bill - divide the MJ value by 3.6, or multiply by 0.277778. One megajoule is 1,000,000 joules while one kilowatt hour is 3,600,000 joules, so the exact ratio is 1 MJ = 1/3.6 kWh.

1 mj = 0.2777777778 kwh

Megajoules and Kilowatt Hours Explained

Megajoules (mj)

The megajoule (MJ) is one million joules, the everyday scale of the SI energy unit. A gas geyser might burn 50 MJ per hour, a litre of petrol holds about 34 MJ, and a standard 14.2 kg domestic LPG cylinder packs roughly 653 MJ. Gas suppliers quote natural gas calorific values in MJ per standard cubic metre, making the megajoule the working unit of the city gas distribution industry, from Gujarat Gas to IGL in Delhi.

Where it is used: Common in LPG and natural gas specifications, industrial boiler and burner ratings, fuel energy tables, and food nutrition labels that use the related kilojoule.

Origin: A straight metric multiple of the joule; Indian fuel standards and city gas companies adopted MJ figures for calorific values, while electricity stayed with the kilowatt hour.

Kilowatt Hours (kwh)

The kilowatt hour (kWh) is the energy of one kilowatt of power — one thousand watts — sustained for one hour, equal to 3.6 MJ or 3,600,000 joules. It is the unit electricity meters count and DISCOMs bill: a typical urban Indian home uses 150-300 kWh a month, an electric car like the Tata Nexon EV carries a 40 kWh battery, and a desktop computer running all day draws roughly 5-8 kWh.

Where it is used: Universal for electricity billing, EV and inverter-battery specifications, rooftop solar generation metering, and BEE star-rating labels on appliances.

Origin: Created by early electrical utilities in the 1880s as a billable combination of power and time; despite not being SI, it is legal for trade nearly everywhere — and in India one kWh is simply called one unit on every electricity bill.

Megajoules to Kilowatt Hours Conversion Table

Megajoules (mj)	Kilowatt Hours (kwh)
1 mj	0.2777777778 kwh
2 mj	0.5555555556 kwh
5 mj	1.3888888889 kwh
10 mj	2.7777777778 kwh
20 mj	5.5555555556 kwh
50 mj	13.8888888889 kwh
100 mj	27.7777777778 kwh
150 mj	41.6666666667 kwh
200 mj	55.5555555556 kwh
250 mj	69.4444444444 kwh
400 mj	111.1111111111 kwh
500 mj	138.8888888889 kwh
1000 mj	277.7777777778 kwh

Kilowatt Hours to Megajoules Conversion Table

Kilowatt Hours (kwh)	Megajoules (mj)
0.1 kwh	0.36 mj
0.25 kwh	0.9 mj
0.5 kwh	1.8 mj
1 kwh	3.6 mj
2 kwh	7.2 mj
5 kwh	18 mj
10 kwh	36 mj
20 kwh	72 mj
30 kwh	108 mj
50 kwh	180 mj
60 kwh	216 mj
100 kwh	360 mj

Megajoules to Kilowatt Hours in Everyday Objects

Common real-world examples that make Megajoules and Kilowatt Hours easy to picture at a glance.

	Megajoules (mj)	Kilowatt Hours (kwh)
A 250 kcal chocolate bar	1.046 mj	0.2905555556 kwh
About 3 litres of petrol	105.506 mj	29.3072222222 kwh
A day of winter geyser and heater use in Delhi	400 mj	111.1111111111 kwh
A 60 kWh electric car battery	216 mj	60 kwh
A 14.2 kg domestic LPG cylinder	414 mj	115 kwh
A month of home electricity for a high-usage household	3240 mj	900 kwh

When You Need Megajoules to Kilowatt Hours Conversions

Reading Piped Gas Bills in Mumbai or Delhi

A winter bill from MGL or IGL showing around 12,000 MJ of gas (roughly 340 SCM at 35 MJ per SCM) divides down to 3333.33 units. Priced against your DISCOM tariff, that instantly shows whether gas water heating still beats an electric geyser.

Choosing a Geyser or Gas Water Heater

Plumbers quote gas water heaters in MJ/h and electric geysers in kW. A 50 MJ/h continuous-flow model converts to 13.889 units of heating per hour — nearly seven times a standard 2 kW geyser element.

Planning Your LPG Cylinder Refills

A 14.2 kg domestic cylinder holds about 653 MJ of chemical energy, or roughly 181 units. Converting cylinder capacity this way tells you how many weeks of daily cooking one refill covers before you book the next one through Indane, HP, or Bharatgas.

Comparing Winter Heating Options

Gas room heaters are rated in MJ/h while electric blow heaters quote kW. Converting a 400 MJ/h gas heater to 111.111 units/h puts both technologies on one scale for a like-for-like running-cost table in rupees.

Related Energy Conversions

Joules to Calories Converter – Fast Energy Calculation for India

Joules → Calories

Calories to Joules Converter Online – Free cal to J Calculator

Calories → Joules

Kilowatt Hours to Megajoules Converter | Convert Electricity Units to MJ

Kilowatt Hours → Megajoules

BTU to Joule Calculator — Convert BTU to J Online Free

BTU → Joules

Joules to BTU Converter for AC Tonnage & Energy Calculations

Joules → BTU

Free eV to J Calculator — Electron Volts to Joules for JEE, NEET & Lab Work

Electron Volts → Joules

Kilocalories to Kilojoules Converter for Indian Food Labels

Kilocalories → Kilojoules

Watt Hours to Joules Calculator – Free Wh to J Energy Converter

Watt Hours → Joules

BTU to kWh Converter – Turn AC BTU into Electricity Units

BTU → Kilowatt Hours

How to Use

1

Enter Megajoules

Type the MJ value from your piped gas bill, LPG data sheet, or appliance spec — for example 400 MJ, the energy in about 8.7 kg of LPG, or just over half a standard 14.2 kg domestic cylinder
2

View Kilowatt Hours

The electricity-scale equivalent appears instantly: 400 MJ converts to 111.111 units (kWh), ready to price against your DISCOM's per-unit tariff
3

Copy or Swap

Copy the result or click Swap to convert kilowatt hours back to megajoules for reverse checks
4

Price the Energy

Multiply the kWh result by your per-unit rate to compare fuels: at ₹8 per unit, that 400 MJ of gas (111.111 kWh) would cost about ₹889 as electricity — often more than the equivalent piped gas or LPG charge

Why Use Be Converter?

Instant Conversion

Get precise MJ to unit (kWh) results in real-time as you type — ideal for checking PNG bills, LPG data sheets, and geyser ratings

Exact 1/3.6 Ratio

Uses the exact definition 1 kWh = 3.6 MJ, so 360 MJ always lands on exactly 100 kWh with no accumulated rounding

Conversion Table

Quick reference from 1 MJ (0.2778 kWh) through 105.5 MJ (29.3 kWh) up to 1000 MJ (277.8 kWh)

Bidirectional

Easily swap between megajoules and kilowatt hours with one click to check both directions of a calculation

Free & No Signup

No registration required. Unlimited conversions. Completely free forever

Privacy First

All calculations happen in your browser. No data is sent to any server

Frequently Asked Questions

How many kilowatt hours are in 1 megajoule?

1 megajoule equals 0.277778 kilowatt hours (exactly 1/3.6). Going the other way, 1 kWh — one unit on your electricity bill — equals 3.6 MJ. So 10 MJ of gas energy is about 2.78 units of electricity-equivalent.

How do I convert 100 MJ to kWh?

Divide by 3.6: 100 ÷ 3.6 = 27.7778 units (kWh). To picture it, 100 MJ of natural gas contains the same energy as running a 2 kW geyser for nearly 14 hours — a sizeable chunk of a Mumbai or Delhi household's monthly consumption.

How many kWh does a 14.2 kg LPG cylinder contain?

A standard 14.2 kg domestic cylinder holds about 653 MJ of energy (at roughly 46 MJ per kg of LPG), which converts to about 181 kWh — nearly 181 units. That is the full heating equivalence of one refill booked through Indane, HP, or Bharatgas.

Why does my piped gas bill show SCM while my electricity bill shows units?

Indian city gas suppliers such as MGL in Mumbai, IGL in Delhi, and Gujarat Gas bill piped natural gas in standard cubic metres (SCM), while DISCOMs bill electricity in units (kWh). One SCM of natural gas carries roughly 35-38 MJ, or about 10 kWh. To compare, multiply your SCM usage by the calorific value printed on the bill, divide the MJ total by 3.6, and price the result against your per-unit electricity tariff.

How much energy does a geyser use?

A standard 15-litre electric geyser with a 2 kW element uses 2 units per hour of heating. A typical gas water heater burns about 50 MJ per hour at full flow — around 13.9 units' worth. For a family of four bathing daily in winter, expect roughly 6-8 units (kWh) a day either way, which is why MJ-to-kWh comparisons matter when choosing between gas and electric models.

What is 1000 MJ in kilowatt hours?

1000 ÷ 3.6 = 277.778 kWh — about 278 units. That is roughly a month of water heating for a household, or right in the range of monthly electricity consumption for urban homes in Mumbai, Delhi, or Bengaluru (typically 150-300 units).

Is an MJ bigger than a kWh?

No — a kilowatt hour is 3.6 times larger than a megajoule. Converting MJ to units should always shrink the number: 500 MJ becomes 138.889 units. If your result grew, you multiplied by 3.6 instead of dividing.

How do I convert MJ to kWh in my head?

Use the approximation 1 MJ ≈ 0.28 units: 100 MJ ≈ 28 units, 400 MJ ≈ 112 units. The exact factor is 0.277778, so this shortcut stays within about 1% — good enough for cross-checking your gas and electricity bills on the spot.

About Megajoules to Kilowatt Hours Converter

Our free online megajoules to kilowatt hours converter provides instant, accurate energy conversions for gas bills, water heaters, and cross-fuel comparisons. In India, gas quantities are quoted in megajoules on data sheets, while your Mahanagar Gas, IGL, or Gujarat Gas bill uses standard cubic metres with the calorific value printed in MJ per SCM — and electricity is billed in kilowatt hours, which every electricity board calls units. Since 1 MJ = 0.277778 kWh exactly, translating between them is the fastest way to see which fuel is cheaper for water heating, cooking, and winter heating. Engineers also meet MJ in boiler ratings, fuel energy content tables, and water heater specs, then need kWh to line those figures up with DISCOM tariffs and BEE star-rated appliance labels. This tool handles the full range, from a single MJ to utility-scale quantities, with an exact definition-based factor.

Expert Tips for MJ to kWh Conversion

The exact ratio is 1 MJ = 1/3.6 kWh = 0.277778 kWh. Memorize two anchors: 90 MJ = 25 kWh and 360 MJ = 100 kWh, then interpolate for everything in between.

Checking a piped gas bill from IGL, MGL, or Gujarat Gas: multiply your SCM usage by the calorific value in MJ/SCM printed on the bill, then convert the total MJ to kWh (÷3.6) and price it at your DISCOM's per-unit rate — the gap is your potential saving from switching fuels.

CNG at pumps in Delhi, Mumbai, or Pune dispenses by the kilogram: 1 kg of CNG carries about 50 MJ, or 13.9 units. Convert that way to compare CNG at the pump with petrol, diesel, or charging an electric car at home overnight.

Water heater shoppers: a continuous-flow gas unit rated 50 MJ/h delivers about 13.9 kW of heating power, versus a typical 2 kW electric geyser element — that is why gas geysers heat water so much faster.

For carbon accounting, converting annual gas MJ into kWh (÷3.6) puts all your household energy on one column; multiplying by India's grid-emissions factor (roughly 0.7 kg of CO2 per unit) then gives total CO2 from both fuels.