Gram
Embed This Widget
Add the script tag and a data attribute to embed this widget.
Embed via iframe for maximum compatibility.
<iframe src="https://unitfyi.com/iframe/glossary/gram-def/" width="420" height="400" frameborder="0" style="border:0;border-radius:10px;max-width:100%" loading="lazy"></iframe>Paste this URL in WordPress, Medium, or any oEmbed-compatible platform.
https://unitfyi.com/glossary/gram-def/Add a dynamic SVG badge to your README or docs.
[](https://unitfyi.com/glossary/gram-def/)Use the native HTML custom element.
Definition
A metric unit of mass equal to one-thousandth of a kilogram (10⁻³ kg), originally defined as the mass of 1 cubic centimeter of water at 4°C.
Explanation
The gram provides a convenient scale for everyday small masses: a paperclip weighs about 1 gram; a US nickel coin weighs exactly 5 grams; a slice of bread weighs roughly 25–30 grams. Nutrition labels express nutrient content in grams and milligrams. The milligram (mg = 0.001 g) is used in pharmacology for drug dosages; the microgram (µg = 10⁻⁶ g) is used for vitamins and trace minerals.
RELATED CONVERSIONS
RELATED ARTICLES
From milligrams to metric tons, this guide covers every major weight and mass unit with exact conversion factors, real-world examples, and a clear explanation of why weight and mass are not the same thing.
Volume Units Guide: Liters, Gallons, Cups, and MoreA thorough reference for every major volume unit—metric, US customary, imperial, and culinary—including exact conversion factors, US vs UK differences, and practical cooking and industrial examples.
Complete Guide to Length Units: From Nanometers to Light-YearsA comprehensive reference covering every major length unit—metric, imperial, nautical, and astronomical—with exact conversion factors and real-world scale examples.
RELATED TERMS
Metric Prefix
A prefix that indicates a decimal multiple or fraction of a unit (kilo-, mega-, milli-, micro-, etc.).
Hectare
A metric unit of area equal to 10,000 square meters or 2.471 acres.
Bar
A unit of pressure equal to 100,000 pascals, slightly less than standard atmospheric pressure.
Metric System
A decimal-based international system of measurement built on seven SI base units, used officially by every country in the world except the United States, Myanmar, and Liberia.
Decimal System
A base-10 numbering system in which each place value is ten times the next smaller value, forming the mathematical foundation of the metric system.