Absorbance to natural absorbance
Type a value in A to get it in Aₑ instantly.
2.303Aₑ
That's 3.2× as dark as the best measuring range, while a strongly colored sample is 10× darker. About 10% of the light gets through.
What it means
How much light gets through?
Above about 2 the detector is measuring very little light, and stray light dominates. Dilute the sample rather than trusting the reading.
The math
How to convert A to Aₑ
To convert absorbance to natural absorbance, multiply by 2.30259.
Example: 1 A × 2.30259 = 2.30259 Aₑ.
In the other direction, 1 Aₑ = 0.434294 A.
Every unit
Your absorbance in every unit
Tables
A to Aₑ conversion table
| A | Aₑ |
|---|---|
| 0.01 A | 0.0230259 Aₑ |
| 0.05 A | 0.115129 Aₑ |
| 0.1 A | 0.230259 Aₑ |
| 0.3 A | 0.690776 Aₑ |
| 0.5 A | 1.15129 Aₑ |
| 0.7 A | 1.61181 Aₑ |
| 1 A | 2.30259 Aₑ |
| 1.5 A | 3.45388 Aₑ |
| 2 A | 4.60517 Aₑ |
| 3 A | 6.90776 Aₑ |
| 4 A | 9.21034 Aₑ |
Aₑ to A conversion table
| Aₑ | A |
|---|---|
| 0.01 Aₑ | 0.00434294 A |
| 0.05 Aₑ | 0.0217147 A |
| 0.1 Aₑ | 0.0434294 A |
| 0.3 Aₑ | 0.130288 A |
| 0.5 Aₑ | 0.217147 A |
| 0.7 Aₑ | 0.304006 A |
| 1 Aₑ | 0.434294 A |
| 1.5 Aₑ | 0.651442 A |
| 2 Aₑ | 0.868589 A |
| 3 Aₑ | 1.30288 A |
| 4 Aₑ | 1.73718 A |
Quick answers
Quick answers
- How many Aₑ is 1 A?
- 1 A is 2.30259 Aₑ.
- How many Aₑ is 10 A?
- 10 A is 23.0259 Aₑ.
The units
About these units
Absorbance (A)
The base-ten logarithm of what is blocked. Proportional to concentration.
Natural absorbance (Aₑ)
The natural-log version used in physics.
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