Kilograms to Milligrams converter

Convert kilograms (kg) to milligrams (mg) — results update instantly as you type.

Kilograms to Milligrams

To1,000,000

1 kg = 1,000,000 mg

How to convert Kilograms to Milligrams

Mass measurements range from milligrams in a pharmacy to metric tons in shipping. The metric world weighs in grams and kilograms, while the US and UK still use ounces, pounds, and stones — this converter handles all of them exactly.

All units convert through the gram. One pound is defined as exactly 453.59237 grams and one ounce as exactly 28.349523125 grams, so results are precise to the international definition.

Formula

kg × 1,000,000 = mg

Multiply your kilograms value by 1,000,000 to get milligrams. For the reverse, divide by the same factor.

Kilograms to Milligrams conversion table

KilogramsMilligrams
1 kg1,000,000 mg
2 kg2,000,000 mg
5 kg5,000,000 mg
10 kg10,000,000 mg
25 kg25,000,000 mg
100 kg100,000,000 mg

Common use cases

  • Body weight between kilograms, pounds, and stones
  • Recipe ingredients between grams and ounces
  • Luggage allowances between kilograms and pounds
  • Freight and cargo in metric tons

Frequently asked questions

One kilogram equals approximately 2.20462 pounds. Conversely, one pound is exactly 0.45359237 kilograms.