Calculator Inputs and Outputs
Inputs
- Inner radius (cm) — example: 3
- Chord length (cm) — example: 4
Results
- Sagitta height (cm)
- Central angle (degrees)
Formula used
Sagitta = radius − √(radius² − chord² ÷ 4).
How to Use the Circle Sagitta Calculator
- Enter each requested input using consistent units.
- Select Calculate Circle Sagitta.
- Review the primary answer and supporting results.
Inputs
- Inner radius: enter a value in cm.
- Chord length: enter a value in cm.
Formula
Sagitta = radius − √(radius² − chord² ÷ 4).
Results
- Sagitta height in cm.
- Central angle in degrees.
Accuracy and Limits
Use measured inputs and keep units consistent. Results are estimates and should be independently checked before financial, medical, construction, scientific, legal, or safety-critical decisions.
Calculation Standards
This tool uses documented formulas and high-precision internal values. Displayed results may be rounded for readability. Review the assumptions and verify important decisions with a qualified professional.
Read our calculation methodology