This single-file solution provides a high-precision Thermal Expansion Calculator. It uses a modern, responsive "SaaS" aesthetic, glassmorphism UI components, and real-time calculation logic. ```html Free Thermal Expansion Calculator | Material Elongation Tool

Thermal Expansion Calculator

Calculate material elongation with precision engineering standards.

Calculation Results

Temperature Change (ΔT) 0
Calculated Elongation (ΔL)
0.000000
mm
Total Final Length (L₀ + ΔL) 0.000000
* Calculation uses formula: ΔL = α * L₀ * ΔT. Ensure inputs use consistent base units.