Picture Frame Calculator

Picture Frame Calculator turns artwork measurements into a practical framing worksheet you can use at the workbench. Enter the artwork width and height, then add a mat border, optional bottom weight, artwork overlap, moulding face width, and frame-lip overlap. The app calculates the mat window, mat board, glass and backing, rabbet opening, outside frame size, and two horizontal plus two vertical 45° long-point rail lengths. Key features: - Switch every measurement between inches and centimeters without retyping - See a proportional preview of the moulding, mat, and artwork - Account for the frame lip that overlaps the glass or mat - Review 45° long-point rail lengths for all four sides - Estimate net moulding length and a 10% material allowance - Swap artwork orientation while keeping the entered values - Copy a concise cut plan to the clipboard when you choose - Catch impossible overlaps and missing measurements before cutting - Use a responsive layout designed for phones, large screens, and larger text - Work entirely offline with no account, ads, analytics, or cloud sync Picture Frame Calculator is a planning aid. Always verify the actual rabbet, fit clearance, saw kerf, joint setup, material, and every measurement before cutting glass or moulding.