What Size Wiper Blades? | Find Your Fit in 2 Minutes

Choosing wiper blades shouldn’t mean squinting through a rain-streaked windshield reading package backs. The right size depends on a few simple details about your car, and getting it wrong means streaks, chatter, or a blade that doesn’t sit on the glass. Here’s the two-minute route to the exact wiper blade size your car needs.

How Wiper Blades Are Sized

Blade lengths run from about 9 inches on compact cars up to 28 inches on trucks and SUVs. Rear wipers typically fall between 11 and 16 inches. The size is always measured as the full blade length — from one metal tip to the other — never just the rubber squeegee inside.

Manufacturers list sizes in inches and sometimes millimeters. One inch equals roughly 25 mm, so a 14-inch blade is about 350 mm, 20 inches equals 500 mm, a 22-inch blade is 550 mm, and a 28-inch blade measures 700 mm. Knowing that conversion helps if you’re shopping on sites that use metric sizing.

Three Ways to Find Your Correct Blade Size

1. Check Your Owner’s Manual

This is the fastest method. Your manual lists the exact front and rear blade lengths for your specific year, make, and model. It also tells you whether your car uses a particular attachment type, like a hook, pin, or side-lock arm. If you still have the manual, start here.

2. Measure the Current Blade

Lift the wiper arm away from the glass until it locks upright. Measure the whole blade from the tip of one end to the tip of the other end using a tape measure. Write down the number as a whole inch (round to the nearest inch — 21.5 inches means you need a 22-inch blade). Do this for both the driver-side and passenger-side blades; they’re often different lengths even on the same car. The driver’s blade is almost always longer to clear a wider arc across the windshield.

3. Search by Year, Make, and Model

Most auto parts stores, both in-person and online, have a fitment finder. Type in your vehicle’s year, make, and model, and the system tells you the correct front and rear sizes. This works even if you don’t have the current blades to measure. Be sure to note whether your car uses different attachment styles — some vehicles use different clips on the driver versus passenger side.

Important Differences Between Front and Rear

Front and rear wiper blades are sized and attached differently. The front blades handle the largest surface area, so the driver-side blade is commonly 22 to 26 inches long. The passenger-side blade is usually shorter by 2 to 4 inches. Rear blades are almost always a separate, smaller size in the 11-to-16-inch range and use a different connector.

Body style also matters. A sedan and an SUV of the same model year may need different blade lengths on the same car line. A hatchback’s rear glass shape may call for a unique blade that won’t fit a sedan version. Always confirm dimensions and attachment type for the specific position you’re replacing.

What Happens With the Wrong Size

An overly long blade may hit the A-pillar or the edge of the windshield, leaving visible dirt lines or damaging the wiper motor over time. A blade too short leaves a stripe of uncleared glass right in the driver’s line of sight. Attachment style matters too; even if the length matches, an incompatible clip or connector will let the blade pop off during use.

If you know your size and are shopping options, you can browse our tested recommendations for quality 19-inch blades that fit a range of common vehicles. Our roundup of the best 19-inch wiper blades covers durability, streak performance, and connector compatibility for popular car models.

Measuring Tip: What Not to Do

Never measure just the rubber insert — the blade’s full metal frame is the only reliable dimension. If your current blade has been replaced with a different brand, the rubber might be slightly shorter or longer than the frame. Measure metal tip to metal tip. If the current blade is slightly bent or worn, take the measurement from the straightest part you can find, or use the manual or online fitment tool as your backup.