# CheckFitment (checkfitment.com)

Free online calculators that check whether wheels fit a vehicle by bolt pattern, offset, backspacing and tire clearance.

- Atlas card: https://inite.ai/en/atlas/checkfitment.com
- Site: https://checkfitment.com
- For: Drivers checking whether aftermarket wheels or tires fit their vehicle before buying
- Use not measured/100 · alive 100/100

## Used for

- check bolt pattern and offset for a wheel
- measure tire clearance before fitting larger wheels
- recalculate speedometer reading after changing tire size

## Price

Not read yet.

## For developers

- MCP server: com.checkfitment/checkfitment (namespace; open on 2026-10-24, 6 tools)
- Read 2026-10-24

## MCP server, measured daily

Server: https://checkfitment.com/mcp?src=mcp, checked every day since 2026-10-24 (5 checks).

- Answered: measuring, 5 daily checks so far
- Median first answer: 125 ms
- Sign-in: none
- Context its tool definitions take: about 1632 tokens (6 tools)
- Tool definitions: B, 89/100
- Failing "params_described": 4 of 6 tools
- Method: https://inite.ai/en/atlas/mcp/report

## Your data

- Certifications stated: gdpr
- Training on your data: no (https://checkfitment.com/privacy)
- Read 2026-10-24

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Source: INITE Atlas, https://inite.ai/en/atlas/checkfitment.com. JSON: https://inite.ai/api/atlas/checkfitment.com. MCP: https://inite.ai/api/mcp (atlas_lookup).