Compare calculators
Both calculators run independently β change the inputs on either side to compare results.
Language
Vocabulary Growth Calculator
Project total vocabulary size by adding daily learning to current vocabulary over a chosen number of days. A simple linear-projection tool for language learners planning realistic vocabulary acquisition timelines.
Fill in the required fields to see your result.
Language
Lexical Diversity Index Calculator
Measures the richness of vocabulary in a text by calculating the Type-Token Ratio (TTR). Use it when analyzing essays, transcripts, or language samples for linguistic research or readability assessment.
Fill in the required fields to see your result.
Key differences
| Vocabulary Growth Calculator | Lexical Diversity Index Calculator | |
|---|---|---|
| Category | Language | Language |
| Inputs required | 3 | 2 |
| Result | Total Vocabulary (words) | Lexical Diversity (%) |
| What it does | Project total vocabulary size by adding daily learning to current vocabulary over a chosen number of days. A simple linear-projection tool for language learners planning realistic vocabulary acquisition timelines. | Measures the richness of vocabulary in a text by calculating the Type-Token Ratio (TTR). Use it when analyzing essays, transcripts, or language samples for linguistic research or readability assessment. |