---
title: "Kilograms to Milligrams — kg to mg converter"
description: "1 kilogram = 1,000,000 milligrams. Convert kilograms to milligrams with a full conversion table, the exact formula, and a calculator for any value."
url: https://atoneplace.net/convert/kg-to-mg/
site: "At One Place"
---

# Kilograms to milligrams

**1 kilogram in milligrams: 1 kg = 1,000,000 mg**

mg = kg × 1,000,000

To convert kilograms to milligrams, multiply by 1,000,000. The table below gives the values people look up most often, and the converter works for any number.

## Kilograms to milligrams table

*Common kilogram values converted to milligrams.*

| Kilograms | Milligrams |
| --- | --- |
| 1 kg | 1,000,000 |
| 2 kg | 2,000,000 |
| 3 kg | 3,000,000 |
| 4 kg | 4,000,000 |
| 5 kg | 5,000,000 |
| 10 kg | 10,000,000 |
| 15 kg | 15,000,000 |
| 20 kg | 20,000,000 |
| 25 kg | 25,000,000 |
| 30 kg | 30,000,000 |
| 40 kg | 40,000,000 |
| 50 kg | 50,000,000 |
| 75 kg | 75,000,000 |
| 100 kg | 100,000,000 |
| 250 kg | 250,000,000 |
| 500 kg | 500,000,000 |
| 1,000 kg | 1,000,000,000 |

## How the conversion works

The relationship is mg = kg × 1,000,000. Both units measure mass, so the conversion is a fixed factor that never changes.

## Common questions

### How many milligrams are in one kilogram?

One kilogram equals 1,000,000 milligrams. mg = kg × 1,000,000.

### How do you convert kilograms to milligrams?

Use mg = kg × 1,000,000. So 10 kg is 10,000,000 mg.

### How many kilograms are in one milligram?

One milligram equals 0.000001 kilograms, which is the reverse of the conversion above.

## Related pages

- [Milligrams to Kilograms](https://atoneplace.net/convert/mg-to-kg/)
- [Kilograms to Grams](https://atoneplace.net/convert/kg-to-grams/)
- [Kilograms to Tonnes](https://atoneplace.net/convert/kg-to-tonnes/)
- [Kilograms to Pounds](https://atoneplace.net/convert/kg-to-lbs/)
- [Kilograms to Ounces](https://atoneplace.net/convert/kg-to-oz/)
- [Kilograms to Stone](https://atoneplace.net/convert/kg-to-stone/)

## Sources

- Guide for the Use of the International System of Units (SP 811) — NIST (https://www.nist.gov/pml/special-publication-811) [Public domain (US Government)]
- The International System of Units (SI Brochure) — Bureau International des Poids et Mesures (https://www.bipm.org/en/publications/si-brochure)
- Calculated on this page — At One Place (/about/)