よく使う変換
ライブ変換ツールで数値を入力し、このカテゴリで対応する任意の単位ペアを選択できます。
比率と濃度 コンバーター
Convert decimal fractions, percentages, ppm and other dimensionless ratio formats. ライブ変換ツールで数値を入力し、このカテゴリで対応する任意の単位ペアを選択できます。
対応単位 (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.
| 変換元の単位 | 基準単位への係数 | Tool |
|---|---|---|
fractionfraction | 1 | Convert this unit ↗ |
percentpercent | 0.01 | Convert this unit ↗ |
per millepermille | 0.001 | Convert this unit ↗ |
basis pointbasis-point | 0.0001 | Convert this unit ↗ |
part per millionppm | 1e-06 | Convert this unit ↗ |
part per billionppb | 1e-09 | Convert this unit ↗ |
part per trillionppt | 1e-12 | Convert this unit ↗ |
part per quadrillionppq | 1e-15 | Convert this unit ↗ |
permyriadpermyriad | 0.0001 | Convert this unit ↗ |
重要な注意
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.