Micrograms to kilograms – convert µg to kg

Convert micrograms to kilograms (µg to kg) to scale tiny trace amounts up to bulk masses. Useful for lab results, medication doses, pollutant limits and food safety regulations.

Open the interactive µg → kg converter:

Use main converter (µg → kg) or switch to kg → µg

The mass converter also supports grams, milligrams, ounces, pounds, stones and tonnes alongside micrograms and kilograms.

Quick reference: µg to kg

One microgram equals 0.000000001 kilograms. So: kg = µg ÷ 1,000,000,000. Examples:

Micrograms (µg) Kilograms (kg)
1,000 µg0.000001 kg
10,000 µg0.00001 kg
100,000 µg0.0001 kg
1,000,000 µg0.001 kg
10,000,000 µg0.01 kg
100,000,000 µg0.1 kg
1,000,000,000 µg1 kg

Why convert micrograms to kilograms?

µg to kg is useful when you:

Other mass converters on this site

All metric mass conversions on the homepage use exact decimal factors, so µg, mg, g, kg and tonnes stay mathematically consistent.

Page last updated: 4 December 2025.