# Metric grain conversions

mass conversions » metric grain conversionsThe metric grain conversion selector here selects the mass/weight measurement unit to convert to starting from metric grains (metric gr). To make a conversion starting from a unit of mass other than metric grain, simply click on the "Reset" button.

## What is metric grain?

The **metric grain** (or pearl grain) is a unit of mass in the metric system equal to 0.050x10-3 kilograms (1 metric grain = 0.050x10-3 kg), the base unit of mass in the International System of Units (SI). It is also equal to 0.050 grams (g), or 50 milligrams (mg) or 50,000 micrograms (μg) (SI units of mass), or about 1.102311x10-4 pounds (lb) or 0.001763698 ounces (oz), which are US customary / Imperial units of mass.

The **grain definition** varies depending on the system of units used, as follows:

- 1 grain = 1 avoirdupois grain = 1 troy grain = 1 Apothecaries grain = 64.79891 milligrams
- 1 metric grain = 1 pearl grain = 50 milligrams = 1/4 (metric) carats

The metric grain (or pearl grain) is used as a unit of mass for pearls and diamonds.

*Symbol:*

metric gr

*Plural:*

metric grains

*Also called:*

pearl grain (plural: pearl grains)

## Metric grain conversions: quick links

A compehensive list with conversions from metric grains to other (metric, imperial, or customary) mass and weight measurement units is presented below.

- metric grain to atomic mass unit (metric gr to amu)
- metric grain to carat (metric gr to ct)
- metric grain to centigram (metric gr to cg)
- metric grain to crith
- metric grain to dalton (metric gr to Da)
- metric grain to decigram (metric gr to dg)
- metric grain to drachm (metric gr to drc)
- metric grain to dram (metric gr to dr)
- metric grain to electron mass (metric gr to m
_{e}) - metric grain to grain (metric gr to gr)
- metric grain to gram (metric gr to g)
- metric grain to hundredweight (UK) (metric gr to cwt)
- metric grain to hundredweight (US) (metric gr to cwt)
- metric grain to kilogram (metric gr to kg)
- metric grain to kilotonne (metric gr to kt)
- metric grain to kip
- metric grain to long ton
- metric grain to metric pound (metric gr to metric lb)
- metric grain to metric ton (metric gr to t)
- metric grain to microgram (metric gr to μg)
- metric grain to milligram (metric gr to mg)
- metric grain to nanogram (metric gr to ng)
- metric grain to ounce (metric gr to oz)
- metric grain to pennyweight (metric gr to dwt)
- metric grain to picogram (metric gr to pg)
- metric grain to pound (metric gr to lb)
- metric grain to quarter (UK) (metric gr to qtr)
- metric grain to quarter (US) (metric gr to qtr)
- metric grain to quintal
- metric grain to short ton
- metric grain to tonne (metric gr to t)
- metric grain to troy ounce (metric gr to oz t)
- metric grain to troy pound (metric gr to lb t)