⚖️

Mass & Weight Converters

Convert kilograms, pounds, ounces, grams, metric tons, stones, and grains.

✨ AI Hybrid

Try typing:

⚖️

Mass & Weight Converter

Convert kilograms, pounds, ounces, grams, metric tons, stones, and grains.

Decimals:

Quantity

Converted Result

Formula: --

⚡

Mass & Weight Live Calculation Matrix

Auto Computed

🔥 Popular Mass & Weight Conversions

Kilogram to Gram (kg → g) Calculate now → Kilogram to Milligram (kg → mg) Calculate now → Kilogram to Microgram (kg → µg) Calculate now → Gram to Kilogram (g → kg) Calculate now → Gram to Milligram (g → mg) Calculate now → Gram to Microgram (g → µg) Calculate now → Milligram to Kilogram (mg → kg) Calculate now → Milligram to Gram (mg → g) Calculate now →

📚 Supported Units in this Category

Metric / SI System

Kilogram (kg)

SI base unit of mass

Gram (g)

1/1,000 of a kilogram

Milligram (mg)

1/1,000 of a gram

Microgram (µg)

1/1,000,000 of a gram

Metric Ton (t)

1,000 kilograms

Stone (st)

14 pounds

Grain (gr)

Traditional mass unit

Troy Ounce (oz t)

Precious metals measurement

Imperial / US Customary

Pound (lb)

16 ounces

Ounce (oz)

1/16 of a pound

Short Ton (US) (ton (US))

2,000 pounds

Long Ton (UK) (ton (UK))

2,240 pounds

🔗 Full Mass & Weight Conversion Matrix

Direct pairing pages for all combinations of supported units.

kg → g kg → mg kg → µg kg → t kg → lb kg → oz kg → st kg → gr kg → ton (US) kg → ton (UK) kg → oz t g → kg g → mg g → µg g → t g → lb g → oz g → st g → gr g → ton (US) g → ton (UK) g → oz t mg → kg mg → g mg → µg mg → t mg → lb mg → oz mg → st mg → gr mg → ton (US) mg → ton (UK) mg → oz t µg → kg µg → g µg → mg µg → t µg → lb µg → oz µg → st µg → gr µg → ton (US) µg → ton (UK) µg → oz t t → kg t → g t → mg t → µg t → lb t → oz t → st t → gr t → ton (US) t → ton (UK) t → oz t lb → kg lb → g lb → mg lb → µg lb → t lb → oz lb → st lb → gr lb → ton (US) lb → ton (UK) lb → oz t oz → kg oz → g oz → mg oz → µg oz → t oz → lb oz → st oz → gr oz → ton (US) oz → ton (UK) oz → oz t st → kg st → g st → mg st → µg st → t st → lb st → oz st → gr st → ton (US) st → ton (UK) st → oz t gr → kg gr → g gr → mg gr → µg gr → t gr → lb gr → oz gr → st gr → ton (US) gr → ton (UK) gr → oz t ton (US) → kg ton (US) → g ton (US) → mg ton (US) → µg ton (US) → t ton (US) → lb ton (US) → oz ton (US) → st ton (US) → gr ton (US) → ton (UK) ton (US) → oz t ton (UK) → kg ton (UK) → g ton (UK) → mg ton (UK) → µg ton (UK) → t ton (UK) → lb ton (UK) → oz ton (UK) → st ton (UK) → gr ton (UK) → ton (US) ton (UK) → oz t oz t → kg oz t → g oz t → mg oz t → µg oz t → t oz t → lb oz t → oz oz t → st oz t → gr oz t → ton (US) oz t → ton (UK)

❓ Knowledge Base

Mass & Weight — Frequently Asked Questions

Everything you need to know about unit conversions, mathematical formulas, and measurement systems.

01 How do I convert between Metric and Imperial units?

To convert between Metric and Imperial units, multiply the given value by the standardized international conversion factor. For example, 1 inch equals exactly 2.54 centimeters, 1 kilometer equals approximately 0.621371 miles, and 1 kilogram equals approximately 2.20462 pounds. Our converter calculates these conversions instantly using official BIPM and NIST conversion standards.

02 What is the difference between Weight and Mass in conversions?

Mass is the intrinsic amount of matter in an object and remains constant regardless of gravitational pull (measured in kilograms or grams in SI). Weight is the force exerted on that mass by gravity (W = mg), measured in Newtons (N) or pound-force (lbf). In commercial and everyday contexts, terms like 'pounds' and 'kilograms' are conventionally used interchangeably as units of mass under standard Earth gravity (9.80665 m/s²).

03 Why does temperature conversion require adding or subtracting numbers?

Unlike length or mass scales that start at absolute zero (0 m = 0 ft), the Fahrenheit and Celsius temperature scales have different zero points. The freezing point of water is 0°C but 32°F. To convert Celsius to Fahrenheit, scale by the degree ratio and add the offset: °F = (°C × 9/5) + 32. To convert Fahrenheit to Celsius: °C = (°F - 32) × 5/9.

04 How accurate are the conversion calculations on this website?

All calculations are computed using 64-bit double-precision floating-point arithmetic mapped directly to exact SI, BIPM, and NIST base conversion factors. Output values can be customized to display 2, 4, 6, or scientific decimal notation depending on your precision requirements.

05 Can I use this unit converter offline on my mobile phone?

Yes. This website operates as a Progressive Web App (PWA). All standard unit conversion calculations, formulas, and reference tables run locally in your browser and function completely offline without requiring an active internet connection.