Windshield Wiper Size Finder

How to use this finder

1. Start on "By vehicle." Pick the model year, then the make, then the model. The dropdowns filter live, so you only ever see vehicles that actually exist in that year.
2. Read all three numbers. Driver, passenger, and rear come back together. On roughly four out of five vehicles the two front blades are different lengths, and buying two of the driver size is the single most common wiper mistake I see.
3. Check the arm note. Where the connector type is confirmed, it is shown under the sizes. Getting the length right and the connector wrong still sends you back to the store.
4. Not listed? Switch to "Measure it." Lift the arm, measure the blade tip to tip including the frame, and type the number in. Inches or millimetres, whichever your old blade is marked in.
5. Already holding the wrong size? Switch to "Will it fit?" Set what your car takes and what you can actually get, and you get a straight answer plus the exact percentage of the sweep you would be giving up.
6. Save it. Copy the result as text, copy a link that reopens on this exact vehicle, or pull a one-page PDF for the glovebox.

Why this finder is different from other wiper size pages

Almost every wiper size page online is either a brand's finder, which exists to sell you that brand's part number, or a flat chart that lists one size per nameplate. The flat charts are the problem, and they are wrong more often than they are right:

• Every row here is scoped to a generation, not a nameplate. A Camry takes 26/18 for 2012–2017 and 26/20 for 2018–2024. A CR-V is 26/17 through 2022 and 24/19 from 2023. A Corolla went from 26/16 to 28/14 in 2020. A chart with one "Toyota Camry" row is a coin flip.
• It answers the substitution question. "Can I use a 22 instead of a 24" is one of the most-asked questions about wipers and none of the top results will answer it, because the brands selling blades have no reason to tell you a different size will do. This tool computes exactly how much sweep you lose and tells you when to stop.
• There is a way out when your car is not listed. Brand finders dead-end. This one hands you to a measuring mode that gives a real answer.
• Sourcing and confidence are on the page. A row ships only when at least two independent fitment listings agree on both the sizes and the year range. Where they disagree, the tool says so out loud instead of picking a number. Vehicles that could not be settled were left out rather than guessed at.
• It is embeddable. Nothing on page one offers an embed. Forum mods, driving schools, and shop sites can host the whole thing with one line of HTML.

How it works (the math)

The vehicle lookup is data, not arithmetic. The other two modes are arithmetic, and both come out of the same physical fact: the arc a wiper sweeps is fixed by the arm, not by the blade. Length is the only variable you control, and it can only move in one direction safely.

Snapping a measurement to a size

Blades are sold in whole inches from 10 to 28. A measurement almost never lands exactly on one, so the tool rounds to the nearest stocked size and breaks ties downward:

size = ceil(measured_inches − 0.5), clamped to 10–28

Downward, because the two failure modes are not symmetrical. A blade a fraction short leaves a thin unwiped band at the outer edge of the sweep, which is annoying. A blade a fraction long has nowhere to go: it rides up onto the A-pillar trim, drops off the edge of the glass, or meets the opposing blade in the middle. That is how arms get bent and trim gets cracked. If you measured in millimetres, the tool converts at exactly 25.4 mm per inch first.

Coverage lost when you go short

Because the arc is fixed, a shorter blade sweeps a proportionally shorter path. The share of swept height you give up is simply:

coverage_lost = (spec − fitted) ÷ spec

Putting a 22 in blade on a 24 in arm loses 8.3% of the sweep. A 26 in blade on a 28 in arm loses 7.1%. Those sound small until you picture where the missing band sits, which is at the top of the sweep, on the driver's side, exactly where you look at a traffic light in the rain.

The verdict thresholds

One inch short is the only substitution I sign off on, and only as a stopgap. Two inches short is a visible band. More than that and you are driving with an obstruction. In the other direction there is almost no room at all: one inch long is a "check the clearance by hand before you switch them on" situation, and anything beyond that is a no. Where a vehicle's two front blades are within two inches of each other, as on an F-150 with its matched pair of 22s, going up a size on either side puts them on a collision course, so the tool flags that separately.

Where the vehicle data comes from

Blade lengths are cross-checked across independent vehicle-specific blade-set listings from the major manufacturers and OE-replacement suppliers. A row only ships when at least two agree on the sizes and the year range; rows marked "Cross-checked" had three or more agree. Two vehicles that could not be settled, the 2019+ Ford Ranger and the 2013–2020 Ford Fusion, were left out rather than published with a guess. The dataset is re-verified every August, before the autumn replacement season.

Three cases from the shop

The customer who bought two of the same blade

A 2021 Corolla came in with a complaint that the passenger wiper was "hitting something." It was: the owner had read a chart listing "Toyota Corolla, 28 inch," bought two 28s, and fitted one to a passenger arm that wants 14. It was climbing the A-pillar on every sweep. That 28/14 split is the widest of any common car, and it is exactly the kind of thing a nameplate-level chart flattens into a wrong answer.

The Tiguan that nobody could supply

A 2020 Tiguan takes 25 in and 22 in on a top-lock arm. The 25 is a genuinely rare length and the top-lock arm needs a blade that says so. The owner had been to two parts counters and come home with nothing both times. The finder flags both problems before you get in the car: rare size, order it, and check the connector.

The one time going short was right

A driver called from a highway services in a downpour with a shredded driver blade on a 26 in arm and only 25s on the shelf. One inch short, 3.8% of the sweep gone, none of it in the sightline. Fit it, drive home, order the right one. That is the whole acceptable range for substitution, and the tool will not tell you anything more generous than that.

What the common sizes actually are

Across US vehicles, 26 in is the single most common driver-side blade, followed by 24 and 22. Passenger blades cluster at 16 to 20. Rear blades, when fitted, run 8 to 16 and are almost always vehicle-specific. The sizes you will struggle to buy locally are 23, 25, and 27; they exist, but they turn over slowly enough that most counters do not stock them.

Trucks are the exception to nearly all of it. F-150, Silverado, Sierra, and pre-2019 Ram all run matched pairs, mostly 22s, which is why truck owners can buy two identical blades and why they are also the group most likely to get away with it. Jeep is the other outlier in the opposite direction: a Wrangler JL takes 16s and a JK takes 15s, the shortest front blades on anything mainstream, because the windshield stands nearly upright.

Whatever size you land on, the type matters as much as the length once you are past fitment. If you drive where it freezes, the beam-versus-bracket decision is a bigger deal than the brand, and it is worth reading how to choose windshield wipers before you spend. If you already know what you need, the current shortlist is in the best windshield wipers.

Frequently asked questions

Can I use a 22 inch wiper instead of a 24?

You can fit it, but I would not leave it on. Two inches short on a 24 in arm gives up 8.3% of the swept height, and on most windshields that band sits at the top of the driver's sweep. It will get you through a storm. It is not the blade you want on the car next week. One inch short is the substitution that is genuinely fine.

Can I use a 26 inch wiper instead of a 28?

Same answer, slightly better odds: 7.1% of the sweep. Vehicles specifying a 28 in driver blade tend to have large, deeply raked windshields, so the missing band is wide but sits high. Treat it as a get-home fix, not a replacement.

Can I go up a size instead of down?

Almost never. The arm's arc is fixed, so extra length has to go somewhere, and the options are the A-pillar trim, the edge of the glass, or the other blade. One inch over is worth checking by hand with the ignition off, sweeping the arm through its full travel. Two inches over is a no on any vehicle I have worked on.

Are the driver and passenger wiper blades the same size?

Usually not. On about four out of five vehicles the driver blade is longer, often by 4 to 8 inches, because it covers the larger and more critical part of the glass. The exceptions are mostly trucks and body-on-frame SUVs that run matched pairs, plus a handful of oddities like the 2013–2019 Ford Escape with its twin 28s. Always confirm both.

Where is the size printed on my existing blades?

Often on the blade's frame or moulded into the rubber near the connector, as a number like 22 or 550 mm. It is not always there and it is frequently worn off, which is why the measuring mode exists. Measure the whole blade tip to tip, including the frame, not just the rubber strip.

Can I embed this finder on my site?

Yes, free, using the snippet at the bottom of this page. Forum mods, driving schools, fleet trainers, detailing sites, and shop pages are all welcome. The embed carries attribution to RevRated and to Mike, which is the only condition. No signup, no fee, no tracking attached to the widget.

Related tools

• Car Maintenance Schedule. Wipers are a twice-a-year item; this puts them on the same calendar as everything else.
• Recommended Tire Pressure Lookup. The same year/make/model approach, for the number on your door jamb.
• Spark Plug Gap Chart. Another spec that changes between generations of the same car.
• Used Car Inspection Checklist. Worn blades and hazed glass are a fast read on how a car was looked after.
• Browse all free tools by Mike Reeves →

Mike's recommendations once you have the size

• Best Windshield Wipers. The shortlist, by type. Beam blades for anywhere that freezes, conventional where it does not, and the sizes above will tell you which part number to pick.
• Best Ice Scrapers. Using the wipers to clear ice is what kills a new set in a single winter. Clear the glass first, then switch them on.
• Best Windshield Repair Kits. A chip inside the sweep path shreds fresh rubber on every pass. Fix the glass before you fit new blades or you will be buying them twice.

Sources & methodology

• Blade lengths: cross-checked across independent vehicle-specific blade-set listings (Bosch, Rain-X, Trico, and multiple OE-replacement suppliers). Two independent agreements minimum per row on both the sizes and the year range; three or more for a "Cross-checked" badge. Conflicting vehicles excluded rather than guessed.
• Unit conversion: 25.4 mm per inch, exact by definition.
• Fit-tolerance guidance: match the size exactly, since a blade an inch too long can hit the windshield trim or collide with the other wiper mid-sweep (Auto Glass Now).
• Replacement interval: 6 to 12 months depending on climate and exposure, consistent across manufacturer guidance.
• Owner's-manual precedence: Ford directs owners to the Capacities and Specifications section for exact part numbers, which is the authority when it disagrees with any lookup, including this one.
• Test fixtures: the snapping, coverage, and verdict maths plus the full vehicle dataset are asserted in fixtures.test.mjs next to the data file, and the dataset is checked for stocked sizes, impossible rear lengths, and overlapping year ranges on every build.

Dataset and fixtures live in fixtures.json alongside the source. Re-verified annually each August. About Mike Reeves · Last reviewed August 28, 2026.

Embed this finder on your site

Free for forums, driving schools, fleet trainers, detailing and glass shops, and anyone writing about winter prep. Attribution is built into the snippet. No fee, no signup, no analytics attached to the embed.

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  Wiper size finder by
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  &middot; Reviewed by Mike Reeves, ASE Master Technician
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