Apostilb to Stilb Converter
Convert apostilbs to stilbs (asb to sb) instantly with this free online luminance converter. Enter any value in the Apostilb field and get the equivalent in Stilb 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 asb = 3.1830989e-05 sb. To convert apostilbs to stilbs, multiply your Apostilb value by 3.1830989e-05. For example, 10 asb = 0.00031830989 sb. You can also reverse the calculation: 1 sb = 31415.92616 asb.
Quick conversion table
| Apostilb (asb) | Stilb (sb) |
|---|---|
| 1 asb | 3.1830989e-05 sb |
| 5 asb | 0.000159154945 sb |
| 10 asb | 0.00031830989 sb |
| 25 asb | 0.000795774725 sb |
| 50 asb | 0.00159154945 sb |
| 100 asb | 0.0031830989 sb |
Use the swap button to reverse the direction, or choose a different unit from the dropdown menus to convert within the luminance category.
Formula
Apostilb to Stilb conversion: 1 asb = 3.1830989e-05 sb stilbs = apostilbs × 3.1830989e-05 1 sb = 31415.92616 asb apostilbs = stilbs × 31415.92616
Example
Example: Convert 10 asb to sb: 10 asb × 3.1830989e-05 = 0.00031830989 sb So, 10 asb is about 0.00031830989 sb. To convert back, multiply by 31415.92616: 0.00031830989 sb × 31415.92616 = 10 asb.
How to Use
- Enter the value you want to convert in the Apostilb field
- The result in Stilb 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 apostilbs to stilbs?
Enter the value in Apostilb (asb) in the 'From' field. The equivalent in Stilb (sb) 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 asb to sb?
1 asb = 3.1830989e-05 sb, so stilbs = apostilbs × 3.1830989e-05. To convert back, 1 sb = 31415.92616 asb. The full formula and a worked example are shown on this page.
How many stilbs are in one Apostilb?
1 asb = 3.1830989e-05 sb.
Is this Apostilb to Stilb 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 stilbs back to apostilbs?
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 asb to sb 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.