How to Use the Wiper Blade Replacement Calculator
Wiper blades wear down a little with every swipe, but the damage is easy to miss until you're driving through a downpour with poor visibility. This calculator takes the months since your last replacement and your typical parking environment, then estimates when you should replace the blades and roughly what it will cost.
The general recommendation is around 12 months, but blades on vehicles parked outdoors constantly can degrade in as little as 8-9 months due to UV exposure and repeated rain cycles. Garage-kept vehicles, on the other hand, can often stretch closer to 15 months before performance drops off.
Regardless of the calculated timing, replace the blades right away if you notice streaking after wiping, water beading and skipping instead of spreading evenly, or a chattering noise during use. Clear visibility in the rain is directly tied to safe driving, so it's not worth putting off.
Frequently Asked Questions
The general guideline is every 6 months to a year, with about 12 months as a typical target. Vehicles parked outside constantly wear out faster because UV exposure breaks down the rubber sooner.
If streaking remains after wiping, water beads and skips instead of spreading evenly, or you hear chattering during use, replace the blades right away regardless of the calculated timing.