Convert more than 60 imperial and Metric (si) units - over 400 conversion combinations with a touch of a few buttons!

转换超过60帝国和公制(市)单位-超过400个转换组合1只需几个按键操作！

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You can use metric or imperial units.

您可以使用公制或英制单位。

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But the Lockheed team was using imperial units, so data passed between the two groups were interpreted incorrectly.

ECONOMIST: Mishaps in space: Foolish, not ghoulish | The

One, Mars Climate Orbiter, had a particularly humiliating crash, because the fault lay with a group of engineers who, in defiance of common sense, had continued to use imperial units of measurement in their calculations when all around had adopted the metric system.

ECONOMIST: Exploring Mars

Investigators have attributed the failed 1999 Climate Orbiter mission to human error: The flight software used metric units while the ground system that wrote the code used Imperial measures.

MSN: History littered with failed Mars probes