免费 · 汽车与旅行
轮胎尺寸计算器.
比较两种轮胎规格：直径、宽度、胎壁、周长和车速表误差。
Loading the calculator…
使用方法: 轮胎尺寸计算器
输入数据或选择文件，调整设置并生成结果。复制或下载之前，请检查结果。
限制与支持格式
输入内容在您的设备上处理。
英语技术说明
Calculated from the size code; real dimensions vary by brand and pressure. Check legal rules before changing size. Everything is calculated in your browser; nothing you type is uploaded.
Sidewall = width × aspect ratio; diameter = rim + 2 × sidewall. The speed error is the ratio of diameters.
205/55R16 to 225/45R17 is +0.38 % in diameter; at 100 km/h shown you actually drive 100.4 km/h.