Specific surface area converter

Convert surface area per unit mass, common in materials science and powders. Use the interactive converter to enter your own value and select any supported pair in this family.

Popular conversions

Use the interactive converter to enter your own value and select any supported pair in this family.

Supported units (7)

Each row links to the live converter. The factor column uses the family’s stated base unit for linear families; for specialized reciprocal or numeral systems, use the live converter and the family-specific explanation.

Source unitFactor to base unitTool
square meter per kilogram
m2-kg
1Convert this unit ↗
square meter per gram
m2-g
1000Convert this unit ↗
square centimeter per gram
cm2-g
0.1Convert this unit ↗
square millimeter per gram
mm2-g
0.001Convert this unit ↗
square foot per pound
ft2-lb
0.2048161436Convert this unit ↗
square foot per ounce
ft2-oz
3.277058298Convert this unit ↗
square centimeter per milligram
cm2-mg
100Convert this unit ↗

Important note

Unit standards, historical definitions and approximations can vary. Cooking volume-to-mass conversions depend on the ingredient; currencies require an exchange rate; sizing systems may be discrete; and logarithmic quantities such as decibels need purpose-built formulas rather than a linear scale.

For laboratory, medical, aviation, engineering or other safety-critical work, verify the definitions and standards that apply to your use case.