Calculate arch radius accurately from span and rise. ArchBuddy is a practical tool that instantly calculates the required radius (R) by simply entering the span (width) and rise (height). Supports both metric and imperial units for seamless use on job sites and in workshops. Coordinates along an arch can be generated at any specified pitch, making this useful for constructing large arches that cannot be drawn with a compass or for working in confined spaces. ■ Key Features ・Radius calculation from span and rise ・Metric & imperial unit support ・Visual diagram display ・Clean, job-focused interface ・Save and Load each arch ・Rename and Delate each arch ・Japanese / English language support ・Coordinate display ・PDF export ・Printing support Ideal for construction, carpentry, metal fabrication, and professional fabrication work where precision matters. Just fast and accurate calculations.
