# UsePhysics (usephysics.com)

Free physics calculators that show the formula and worked steps for mechanics, electricity and other homework problems.

- Atlas card: https://inite.ai/en/atlas/usephysics.com
- Site: https://usephysics.com
- For: Students doing physics homework, and people checking physics or household energy costs
- Use not measured/100 · alive 87/100

## Used for

- check homework answers against worked physics formulas
- estimate yearly running cost of household appliances
- compute projectile range from launch speed and angle

## Price

- no price printed, no free plan (read 2026-11-03 on https://usephysics.com/calculators/electricity-cost)

## For developers

- MCP server: com.usephysics/physics-calculators (namespace; open on 2026-11-03, 4 tools)
- Read 2026-11-03

## MCP server, measured daily

Server: https://usephysics.com/api/mcp, checked every day since 2026-11-03 (1 checks).

- Answered: measuring, 1 daily checks so far
- Median first answer: 193 ms
- Sign-in: none
- Context its tool definitions take: about 529 tokens (4 tools)
- Tool definitions: A, 100/100
- Method: https://inite.ai/en/atlas/mcp/report

## Your data

- Certifications stated: none
- Read 2026-11-03

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