Phot to Nox Converter
Convert phots to nox instantly. Free, bidirectional, and fully in-browser.
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
Open Phot to Nox Converter on AltFTool — it loads instantly in your browser.
- 2
Type the value you want to convert into the Phot field.
- 3
Read the equivalent in nox in the result field, and copy it if needed.
- 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
How many nox are in a phot?
One phot is 10000000 nox. Multiply the phot value by 10000000 to convert. For example, 10 ph = 100000000 nox.
What is the formula to convert phots to nox?
nox = ph × 10000000. This tool applies it automatically and shows a worked example: 10 ph = 100000000 nox.
Can it convert nox back to phots?
Yes. Press the swap button, or type into the nox field, and the tool converts nox to phots using the inverse of the same relationship.
Is the conversion accurate?
It uses the standard illuminance definition (nox = ph × 10000000), not a rounded approximation, so results are exact to the number of decimal places you select.
Does this work offline and stay private?
Yes. The converter is a browser-side script with no network calls: your values are never uploaded, and once the page has loaded it keeps working without a connection.
Embed this tool on your site
Add the Phot to Nox Converter widget to your blog or website — free, responsive, no signup. Just keep the “Widget by AltFTool” credit link visible.
<iframe src="https://www.altftool.com/embed/widget/phots-to-nox-converter"
title="Phot to Nox Converter — free AltFTool widget"
width="100%" height="640" style="border:0;border-radius:12px;overflow:hidden"
loading="lazy" referrerpolicy="no-referrer-when-downgrade" allow="clipboard-write"></iframe>
<p style="font-size:12px;margin:4px 0 0">Widget by <a href="https://www.altftool.com/tools/all/phots-to-nox-converter?utm_source=embed&utm_medium=widget" rel="nofollow">AltFTool — free online tools</a></p>