Convert Rating

Convert IMDb or Netflix average user rating from fractional form (e.g. 4.2) to a common 1-99 Scale.

On IMDb, users rate movies 1-10 whole stars, while Netflix users rate movies on a scale of 1-5 whole stars. Both sites display average (or expected) ratings to a precision of one digit after the decimal point. The computed uncertainty is the difference between the average and the minimum or maximum on the 1-99 scale. Also see Movie Rating Systems for conversion tables applicable to other rating schemes.

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