About this tool

Phot to Nox Converter

Convert phots to nox instantly. Free, bidirectional, and fully in-browser.

1 phot equals 10000000 nox — enter any phot value to convert it to nox instantly. This Phot to Nox converter is a client-side tool: it applies a single multiplication (nox = ph × 10000000) in your browser, updates the moment you type, and works in both directions — edit either field, or press swap, to convert nox back to phots. A reference table lists common phot values already converted, and nothing you enter is sent to a server.

How to use Phot to Nox Converter

1. 1

   Open Phot to Nox Converter on AltFTool — it loads instantly in your browser.

2. 2

   Type the value you want to convert into the Phot field.

3. 3

   Read the equivalent in nox in the result field, and copy it if needed.

4. 4

   Use the decimal-places slider for more or less precision, or press swap to convert nox to phots.

Why use Phot to Nox Converter

• Instant, both ways

  The result updates as you type, and the swap button flips the conversion to nox → phot without reloading.

• Exact Illuminance math

  The conversion uses the precise factor (nox = ph × 10000000), so the number matches a manual calculation to the decimal places you choose.

• Adjustable precision

  A slider sets 0–10 decimal places, and very small or very large results switch to scientific notation instead of rounding to zero.

• Private and free

  Everything runs locally in your browser — no upload, no account, no limit on conversions.

Common use cases

• Converting a phot measurement to nox for a spec, listing, or report.
• Checking phot↔nox figures while comparing products, datasets, or documentation.
• Learning the phot-to-nox relationship from the worked formula and the common-value table.

Frequently asked questions