Lambert to Apostilb Converter
Convert lamberts to apostilbs (L to asb) instantly with this free online luminance converter. Enter any value in the Lambert field and get the equivalent in Apostilb immediately. This converter handles any quantity — from tiny fractions to large numbers — with full precision. No signup, no ads in the widget, and the conversion runs entirely in your browser for instant results.
The conversion factor is exact: 1 L = 9999.999874 asb. To convert lamberts to apostilbs, multiply your Lambert value by 9999.999874. For example, 10 L = 99999.99874 asb. You can also reverse the calculation: 1 asb = 0.0001000000013 L.
Quick conversion table
| Lambert (L) | Apostilb (asb) |
|---|---|
| 1 L | 9999.999874 asb |
| 5 L | 49999.99937 asb |
| 10 L | 99999.99874 asb |
| 25 L | 249999.9969 asb |
| 50 L | 499999.9937 asb |
| 100 L | 999999.9874 asb |
Use the swap button to reverse the direction, or choose a different unit from the dropdown menus to convert within the luminance category.
Formula
Lambert to Apostilb conversion: 1 L = 9999.999874 asb apostilbs = lamberts × 9999.999874 1 asb = 0.0001000000013 L lamberts = apostilbs × 0.0001000000013
Example
Example: Convert 10 L to asb: 10 L × 9999.999874 = 99999.99874 asb So, 10 L is about 99999.99874 asb. To convert back, multiply by 0.0001000000013: 99999.99874 asb × 0.0001000000013 = 10 L.
How to Use
- Enter the value you want to convert in the Lambert field
- The result in Apostilb appears instantly below
- Use the dropdown menus to change units if needed
- Click 'Swap Units' to reverse the conversion direction
- Copy the result or adjust the input for a new conversion
Frequently Asked Questions
How do I convert lamberts to apostilbs?
Enter the value in Lambert (L) in the 'From' field. The equivalent in Apostilb (asb) appears instantly in the 'To' field. The converter uses precise conversion factors and updates in real time as you type.
What is the formula to convert L to asb?
1 L = 9999.999874 asb, so apostilbs = lamberts × 9999.999874. To convert back, 1 asb = 0.0001000000013 L. The full formula and a worked example are shown on this page.
How many apostilbs are in one Lambert?
1 L = 9999.999874 asb.
Is this Lambert to Apostilb converter free?
Yes, completely free with no signup, no limits, and no ads in the converter widget. You can convert as many values as you need. The tool runs entirely in your browser, so your data never leaves your device.
Can I convert apostilbs back to lamberts?
Yes. Click the 'Swap Units' button to reverse the direction. You can also use the dropdown menus to select any other luminance unit for either field.
How accurate is the L to asb conversion?
The converter uses high-precision conversion factors (up to 8 decimal places). Results are displayed with up to 6 decimal places, with trailing zeros removed for readability. For scientific or engineering work, always verify with official standards.