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About this tool
Convert teslas to milliteslas instantly. Free, bidirectional, and fully in-browser.
1 tesla equals 1000 milliteslas — enter any tesla value to convert it to milliteslas instantly. This Tesla to Millitesla converter is a client-side tool: it applies a single multiplication (mT = T × 1000) in your browser, updates the moment you type, and works in both directions — edit either field, or press swap, to convert milliteslas back to teslas. A reference table lists common tesla values already converted, and nothing you enter is sent to a server.
Open Tesla to Millitesla Converter on AltFTool — it loads instantly in your browser.
Type the value you want to convert into the Tesla field.
Read the equivalent in milliteslas in the result field, and copy it if needed.
Use the decimal-places slider for more or less precision, or press swap to convert milliteslas to teslas.
The result updates as you type, and the swap button flips the conversion to millitesla → tesla without reloading.
The conversion uses the precise factor (mT = T × 1000), so the number matches a manual calculation to the decimal places you choose.
A slider sets 0–10 decimal places, and very small or very large results switch to scientific notation instead of rounding to zero.
Everything runs locally in your browser — no upload, no account, no limit on conversions.
One tesla is 1000 milliteslas. Multiply the tesla value by 1000 to convert. For example, 10 T = 10000 mT.
mT = T × 1000. This tool applies it automatically and shows a worked example: 10 T = 10000 mT.
Yes. Press the swap button, or type into the millitesla field, and the tool converts milliteslas to teslas using the inverse of the same relationship.
It uses the standard magnetic flux density definition (mT = T × 1000), not a rounded approximation, so results are exact to the number of decimal places you select.
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.
Add the Tesla to Millitesla Converter widget to your blog or website — free, responsive, no signup. Just keep the “Widget by AltFTool” credit link visible.
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