What you'll need
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How to use it: enter your inside windshield width at the top and bottom and the height at the center, then the shade’s listed width and height. Treat flexible overlap designs only as bounding rectangles here; the calculator does not model their actual contour or mounting. The calculator flags where the shade would overhang at the top or leave a gap at the bottom. This works for a rental or a car you own.
A windshield can be narrower at the top than at the bottom. A rectangular shade may therefore protrude at the top while leaving bottom gaps. Compare those axes separately; area or diagonal length alone cannot prove fit.
Sunshade measurement envelopes
Compare top/bottom glass spans and a rectangular shade. Dimensions alone cannot certify a curved windshield or an offset camera/mirror cutout.
Hypothetical dimensions, not a vehicle preset. The SVG is top-aligned and centered solely to compare envelopes.
Enter your measured dimensions.
Your dimensions stay in this page. No vehicle data, address or VIN is sent or automatically saved.
What the calculation measures
Enter usable top width, bottom width and height in one unit, then the rectangular shade’s actual width and height. The tool converts dimensions to millimeters, reports excess or uncovered spans and draws a top-aligned, centered reference outline. It does not model curved glass, flexible edges, pillars, mounting or the shade’s actual contour. The starting values are hypothetical, not a fit record for a vehicle.
top width excess = max(0, shade width − measured top width)
bottom width gap = max(0, measured bottom width − shade width)
Height excess and gaps use the same independent comparisons. A positive result on one axis cannot cancel a conflict on another. A flexible shade or a custom contour may behave differently from a rigid rectangle; resolve that with the exact maker’s fit instructions rather than interpreting this sketch as a template.
Keep mirror and camera clearance separate
The optional fields compare the cutout’s width/depth with the combined mirror and camera/sensor envelope. Missing measurements stay unknown. Even sufficient width and depth do not prove that an offset cutout is aligned or that the shade clears hardware during insertion and removal.
Covercraft explains why a cutout can deliberately be wider than a sensor housing : the mirror and sensor can sit in different positions. Its coverage explanation also distinguishes intended edge gaps from total blackout. These are construction principles, not universal dimensions for an unnamed shade.
Before buying for a rental or lease
Use the exact shade’s documented vehicle/variant fit where available, preserve the vehicle maker’s hardware restrictions and check removable storage dimensions. Do not press a shade into cameras, mirror mounts, trim or airbags to make a size match. Follow the exact installation/removal instructions and remove it before driving. The calculator cannot approve an attachment method or certify rental-contract permission.
Once physical fit is resolved, the sunshade care and storage guide helps read the exact maker’s storage instructions, and the sunshade size guide lists example sizes from current listings. The custom sunshade comparison discusses a separate model-specific buying decision.
Method and sources
Original unit conversion, difference arithmetic and SVG outline, checked numerically and in a browser. We did not fit a shade, inspect a vehicle, measure temperature or test installation speed. Sources checked October 15, 2026: Covercraft cutout explanation and coverage limits .