Surname Frequency Calculator
Estimate how common a surname is based on length, origin region, and historical period. Get spelling variation counts.
Inputs
Results
Est. Frequency (per 100k)
81
Spelling Variations
14
Rank Estimate123
Region Popularity Score120%
Origin Type Code (1-5)2
How to Use This Calculator
- Enter the Surname Length in characters and select the Origin Region.
- Enter the First Letter index (A=1, Z=26) as surname frequency varies by initial letter.
- Select the Historical Period when the surname was recorded.
- Review Estimated Frequency per 100,000 and Rank Estimate for the surname's historical prevalence.
- Use Region Popularity Score to focus your records search in the most likely geographic areas.
How the result changes with Surname Length (characters)
| Surname Length (characters) | Est. Frequency (per 100k) | Spelling Variations |
|---|---|---|
| 3.8 | 100.8 | 9 |
| 8.3 | 60.3 | 20 |
| 14 | 9 | 34 |
| 18 | 9 | 43 |
What each input means
- Surname Length (characters)
- Number of characters in the surname
- Origin Region
- Geographic origin of the surname
- First Letter (A=1, Z=26)
- First letter of the surname as a number (A=1, B=2, ... Z=26)
- Historical Period
- Historical period for context on surname usage
How this is calculated
Worked example, using the default values
- Identify Input Parameters4 parametersSurname Length (characters) = 6, Origin Region = 1, First Letter (A=1, Z=26) = 13, Historical Period = 3 = 4 input(s) provided
- Calculate Est. FrequencyEst. Frequency81 = 81
- Calculate Spelling VariationsSpelling Variations14 = 14
- Calculate Rank EstimateRank Estimate123 = 123
- Calculate Region Popularity ScoreRegion Popularity Score120 = 120
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