Rapports et concentrations convertisseur

Convert decimal fractions, percentages, ppm and other dimensionless ratio formats. Utilisez le convertisseur interactif pour saisir une valeur et choisir toute paire compatible de cette famille.

Unités prises en charge (9)

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.

Unité sourceFacteur vers l’unité de baseTool
fraction
fraction
1Convert this unit ↗
percent
percent
0.01Convert this unit ↗
per mille
permille
0.001Convert this unit ↗
basis point
basis-point
0.0001Convert this unit ↗
part per million
ppm
1e-06Convert this unit ↗
part per billion
ppb
1e-09Convert this unit ↗
part per trillion
ppt
1e-12Convert this unit ↗
part per quadrillion
ppq
1e-15Convert this unit ↗
permyriad
permyriad
0.0001Convert this unit ↗

Remarque importante

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.