Celsius to Fahrenheit Converter

The tool provides a precise two-way conversion between Celsius and Fahrenheit for quick, reliable temperature addressing in technical, academic, and field contexts. It accepts a numeric value and a source unit (C or F) and returns the equivalent value in the target unit, using standard formulas and fixed formatting. By applying F = C × 9/5 + 32 for C→F and C = (F − 32) × 5/9 for F→C, it yields deterministic results suitable for charts, reports, and calculations. Validation enforces numeric inputs and physical validity relative to absolute zero (C ≥ -273.15, F ≥ -459.67). The tool supports decimal_precision to control display precision, ensuring consistent documentation and data pipelines. It is lightweight, dependency-free, and suitable for educational demonstrations, engineering notes, and travel planning where unit consistency is critical. Unique value lies in its strict input validation, clear math basis, and predictable output formatting, enabling reliable reuse in automated scripts and spreadsheets. Use cases include classroom exercises, lab data records, and quick field measurements where unit conversion is required without external references or network calls.