Bending Calculator Suite: Arc• Angle • Radius

Precision Arc Length • Bend Angle • Radius Calculations: To support precise design and operation in aluminum profile bending, this page provides six practical online calculators. These tools enable quick calculations of arc length, bending angle, radius, sagitta, and ovality based on your input parameters—helping you streamline production and ensure bending accuracy.

Function Overview

1. Arc Length Calculator • Calculates the arc length from a given radius and central angle. • Helps estimate material length for efficient cutting and nesting.
2. Angle Calculator • Computes bending angle from input radius and arc length. • Assists in setting accurate bending machine parameters.
3. Radius Calculator • Determines bending radius based on known arc length and angle. • Useful for designing complex curved profiles precisely.
4. Mid-Ordinate (Sagitta) Calculator • Calculates the sagitta (mid-ordinate) — the height of the arc — from radius and chord length. • Important for understanding vertical displacement in bent profiles.
5. Radius from Chord & Mid-Ordinate Calculator • Derives the radius using chord length and sagitta values. • Supports verification and correction of bending geometry.
6. Ovality Calculator • Measures the ovality (deviation from circularity) of profiles. • Critical for quality control in bending round or oval sections.

💡 Use these calculators together to enhance accuracy, reduce errors, and optimize your aluminum profile bending process.

Bending Arc Length, Degree, and Radius Calculator

How to Use

• Enter any two parameters and click the “Calculate” button to get the third value.
• Switch between units (mm/inch) to suit regional preferences.
• Use the “Clear” button to quickly reset all inputs for repeated testing.

Recommended Tool

Want to find out the minimum bendable radius based on your profile size and material type?

👉 Try our Aluminum Profile Bending Radius Calculator — designed to estimate safe bending limits for different aluminum profiles and alloys.

💡 Need to estimate aluminum profile weight during bending design? Try our Online Aluminum Profile Weight Calculator — ideal for quickly calculating the weight of aluminum extrusions such as U-shaped channels and custom profiles. Simply input dimensions and alloy type to get precise results for production planning.

Ovality Calculator – Quickly Check Pipe or Tube Roundness

This tool helps you calculate ovality, a measure of how much a pipe or tube deviates from a perfect circle.

Just enter the maximum and minimum diameters of the cross-section, and the calculator provides the ovality percentage.

Why It Matters:

• ✅ Ensures dimensional accuracy in bending and forming
• ✅ Helps detect out-of-tolerance or defective materials
• ✅ Useful for QA checks during aluminum and steel profile processing

Formula Used:

Ovality (%) = (Max Diameter – Min Diameter) ÷ Nominal Diameter × 100

🛠️ Tip: Use this before bending to confirm material roundness and prevent deformation or profile cracking.

Role in Aluminum Profile Bending

• Accurately predict arc and developed lengths to help technicians prepare materials and reduce waste.
• Optimize bending program settings by aligning inputs with the bending machine for better consistency.
• Boost design efficiency by enabling designers to quickly verify if a structure meets bending requirements.

These calculator tools will become your indispensable assistants in aluminum profile bending design and production!