Working Length Calculator
Root canal working length from radiographic measurement.
Medical Disclaimer
This calculator is for informational and educational purposes only. It is not a substitute for professional medical advice, diagnosis, or treatment. Always consult a qualified healthcare provider before making decisions about your health. Never disregard professional medical advice or delay seeking it because of results from this tool.
Inputs
Results
Recommended working length (mm)
23.6
Ingle method WL (mm)23.6
Direct method WL (mm)23.6
Corrected tooth length (mm)24.1
Magnification factor1.05
How to Use This Calculator
- Measure the Radiographic Tooth Length (mm) on the preoperative radiograph.
- Enter the Actual File Length (mm) of the instrument used for the diagnostic radiograph.
- Input the Apparent File Tip length on film (mm) and the Reference/Stopper Setting (mm).
- Review Recommended Working Length (mm) and the Ingle method calculation.
- Use the Adjusted WL from the direct method as the final working length confirmed with apex locator.
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