格式转换
速度转换器
免费速度转换器 — km/h、mph、m/s、节、ft/s。驾驶、跑步、航海、航空。即时、准确，完全在您的浏览器中运行。
Runs in your browser
编辑注
Understanding · Length over time.
本深度章节目前仅有英文版本。上方的转换工具支持您的语言;长篇说明文章尚未翻译。
常见问题
Quick answers.
›How do I convert mph to km/h?
Multiply mph by 1.609. So 60 mph ≈ 96.6 km/h. Or just type it in.
›What is a knot?
A knot is one nautical mile per hour, equal to 1.852 km/h or 1.151 mph. Used in marine and aviation contexts.
›How fast is the speed of light?
Light in vacuum travels at exactly 299,792,458 m/s — that's about 670 million mph or 1.08 billion km/h.
›Are running paces supported?
You can convert between any speed units, but for pace conversions (e.g. min/km ↔ min/mile) use a dedicated running pace tool.
›Is the converter free?
Yes — free, no ads, runs in your browser.
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