UnitsConverter

Megajoule to Kilojoule Converter

Convert megajoules to kilojoules with our free online energy converter.

Quick Answer

1 Megajoule = 1000 kilojoules

Formula: Megajoule × conversion factor = Kilojoule

Use the calculator below for instant, accurate conversions.

Our Accuracy Guarantee

All conversion formulas on UnitsConverter.io have been verified against NIST (National Institute of Standards and Technology) guidelines and international SI standards. Our calculations are accurate to 10 decimal places for standard conversions and use arbitrary precision arithmetic for astronomical units.

Last verified: November 2025Reviewed by: Sam Mathew, Software Engineer

Megajoule to Kilojoule Calculator

How to Use the Megajoule to Kilojoule Calculator:

  1. Enter the value you want to convert in the 'From' field (Megajoule).
  2. The converted value in Kilojoule will appear automatically in the 'To' field.
  3. Use the dropdown menus to select different units within the Energy category.
  4. Click the swap button (⇌) to reverse the conversion direction.
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How to Convert Megajoule to Kilojoule: Step-by-Step Guide

Converting Megajoule to Kilojoule involves multiplying the value by a specific conversion factor, as shown in the formula below.

Formula:

kJ = MJ × 1000

Example Calculation:

1 MJ = 1000 kJ

Disclaimer: For Reference Only

These conversion results are provided for informational purposes only. While we strive for accuracy, we make no guarantees regarding the precision of these results, especially for conversions involving extremely large or small numbers which may be subject to the inherent limitations of standard computer floating-point arithmetic.

Not for professional use. Results should be verified before use in any critical application. View our Terms of Service for more information.

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📋 Unit Symbols

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Conversion Table: Megajoule to Kilojoule

Megajoule (MJ)Kilojoule (kJ)
0.5500
11,000
1.51,500
22,000
55,000
1010,000
2525,000
5050,000
100100,000
250250,000
500500,000
1,0001,000,000

People Also Ask

How do I convert Megajoule to Kilojoule?

To convert Megajoule to Kilojoule, enter the value in Megajoule in the calculator above. The conversion will happen automatically. Use our free online converter for instant and accurate results. You can also visit our energy converter page to convert between other units in this category.

Learn more →

What is the conversion factor from Megajoule to Kilojoule?

The conversion factor depends on the specific relationship between Megajoule and Kilojoule. You can find the exact conversion formula and factor on this page. Our calculator handles all calculations automatically. See the conversion table above for common values.

Can I convert Kilojoule back to Megajoule?

Yes! You can easily convert Kilojoule back to Megajoule by using the swap button (⇌) in the calculator above, or by visiting our Kilojoule to Megajoule converter page. You can also explore other energy conversions on our category page.

Learn more →

What are common uses for Megajoule and Kilojoule?

Megajoule and Kilojoule are both standard units used in energy measurements. They are commonly used in various applications including engineering, construction, cooking, and scientific research. Browse our energy converter for more conversion options.

For more energy conversion questions, visit our FAQ page or explore our conversion guides.

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Verified Against Authority Standards

All conversion formulas have been verified against international standards and authoritative sources to ensure maximum accuracy and reliability.

NIST Reference on Constants, Units and Uncertainty

National Institute of Standards and Technology — Fundamental physical constants and unit conversions

BIPM SI Units

Bureau International des Poids et Mesures — International System of Units (SI) definitions and standards

ISO 80000

International Organization for Standardization — Quantities and units international standards series

Last verified: November 14, 2025