Jaro-Winkler Distance
Calculate Jaro-Winkler Distance instantly with the exact formula and a worked example.
Jaro-Winkler Distance
Length of string 1
Length of string 2
Matching characters m
Transpositions t (half of out-of-order matches)
Common prefix (up to 4 characters)
Scaling factor p
JW similarity
0.961111
Jaro similarity
0.9444
Jaro-Winkler distance (1 − JW)
0.0389
More about: Jaro-Winkler Distance
What it calculates
The “Jaro-Winkler Distance” calculator computes JW similarity from 6 parameters: length of string 1, length of string 2, matching characters m, transpositions t (half of out-of-order matches), common prefix (up to 4 characters), scaling factor p.
Standard IT calculations for developers and sysadmins.
Example calculation
With parameters Length of string 1 = 6, Length of string 2 = 6, Matching characters m = 6, Transpositions t (half of out-of-order matches) = 1, Common prefix (up to 4 characters) = 3, Scaling factor p = 0.1 the result is 0.9611.
How to use
- Enter length of string 1, length of string 2, matching characters m, transpositions t (half of out-of-order matches), common prefix (up to 4 characters) and scaling factor p — each field above is adjustable with a slider.
- JW similarity is calculated automatically as you type.
- Check the worked example below to see the formula applied to real numbers.
- Copy the result or bookmark this calculator.
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FAQ
How is Jaro-Winkler Distance calculated?
The Jaro-Winkler Distance calculator computes JW similarity from length of string 1, length of string 2, matching characters m, transpositions t (half of out-of-order matches), common prefix (up to 4 characters), scaling factor p. Enter your values above and the exact formula is applied instantly; a worked example with real numbers is shown below.
Is the Jaro-Winkler Distance calculator free?
Yes. It is completely free, needs no signup, runs entirely in your browser, and sends no data to any server.
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