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About this tool
Turn a measured wiper blade into the nearest stocked size in millimetres and inches, and identify the arm fitting type.
The Wiper Blade Size Finder converts a blade you have physically measured, tip to tip along the rubber, into the nearest length actually stocked — giving both the metric and the imperial size, since the two ladders do not coincide (22 inches is 558.8 mm, which falls between the 550 mm and 575 mm sizes). It also lists the arm attachment types and the visual feature that identifies each one. Use it when replacing blades yourself rather than relying on a lookup that may not cover your exact variant or facelift.
Open Wiper Blade Size Finder on AltFTool — it loads instantly in your browser.
Add your input to the workspace.
Adjust the options until the result looks right.
Copy or download the output and put it to work.
Shows the nearest millimetre size and the nearest inch size, with the exact difference in mm.
Describes the visible feature that distinguishes hook, push button, pinch tab and side pin arms.
Flags when the nearest size up would exceed the safe oversize allowance for a fixed wiper arc.
Lift the arm off the glass and measure the rubber squeegee from one tip to the other, not the metal arm. Read it in millimetres if you can — blades are sold in both, and 1 inch is exactly 25.4 mm, so a 24 in blade is 609.6 mm.
It is not advisable. The arm sweeps a fixed arc set by the linkage, so a longer blade can strike the opposite blade, run past the edge of the glass, or overload the arm spring. Going slightly shorter is mechanically safe and only costs you a narrow unwiped strip.
Usually not. On most cars the driver's side blade is longer, often by 100 to 150 mm, because it sweeps the larger part of the screen. Always check both before ordering a pair, and replace them together so one fresh blade is not left smearing beside a worn one.
Most manufacturers suggest every 6 to 12 months, and sooner in strong sun, because heat and UV harden the rubber edge long before it looks worn out. The practical test is streaking, chattering or a band left uncleared on the first pass — any of those means the edge has gone.