Batch Tire Size Calculator
Work out many sizes at once. Use the calculator below. Results update as you type.
How the Batch Tire Size Calculator Works
This calculator works by reading a list of size records, cleaning each one and returning the computed dimensions for every row. It handles hundreds of rows in one run.
- Paste a list or upload a CSV file with one size per row.
- Let the tool validate and clean each entry.
- Read the results: parsed size, diameter, revs per mile and status.
- Download the results as a CSV file.
The Formula
The formula runs the validator and the standard dimension equations on each row: Result_i = Calculate(Clean(Row_i)).
Clean: pattern match and correction D_i = (Rim × 25.4) + 2 × (Width × Aspect ÷ 100) Revs per Mile_i = 20,168 ÷ D_i (in)Worked example: the row "245-40-18" cleans to 245/40R18, giving a 25.72 in diameter and 784 revs per mile.
Conversion Table
The conversion table shows 7 sample input rows and the result returned for each one. Statuses include OK, Corrected and Error.
The last row shows an error: "205/55" has no rim diameter, so the tool flags it instead of guessing.
| Input Row | Parsed Size | Diameter (in) | Revs / Mile | Status |
|---|---|---|---|---|
| 225/45R17 | 225/45R17 | 24.97 | 808 | OK |
| P235/65R17 103T | 235/65R17 | 29.03 | 695 | OK |
| LT265/70R17 | 265/70R17 | 31.61 | 638 | OK |
| 245-40-18 | 245/40R18 | 25.72 | 784 | Corrected |
| 275/55R20 | 275/55R20 | 31.91 | 632 | OK |
| 33x12.50R17 | 33x12.50R17 | 33.00 | 611 | OK |
| 205/55 | — | — | — | Error: rim missing |
What Is the Batch Tire Size Calculator?
The Batch Tire Size Calculator is a tool that processes many tire size records at once. It suits fleet managers, tire retailers and data teams with spreadsheets of sizes.
Batch processing removes copy-paste errors and gives every row the same treatment. The output is ready for import into another system.
Common Uses
This calculator has 4 uses: fleet audits, inventory cleanup, catalog data and dealer quotes.
- Audit fleets: Compute dimensions for every vehicle.
- Clean inventory: Standardize stock sizes.
- Build catalog data: Add diameter and revs to listings.
- Prepare dealer quotes: Process a customer's list at once.