Unit Tools — Support

Unit converter for length, weight, temperature, currency, and more

Get help

Questions, bug reports, or feedback? Email fangvsyu@gmail.com and we'll get back to you.

How do I switch between unit categories?

Tap the category tags at the top of the screen (Length, Weight, Temperature, Currency, etc.) to switch between unit types.

How do I change the units I'm converting between?

Tap the unit label on either the input or result card to open the unit picker and select a different unit. You can also tap the swap button between the two cards to instantly reverse the conversion direction.

Why are the currency rates outdated?

Exchange rates are fetched live when you open the Currency category. Tap the refresh icon next to the rate timestamp to fetch the latest rates. The app requires an internet connection to update rates.

Can I enter negative numbers?

Yes. The keyboard includes a +/− key for entering negative values, which is useful for temperature conversions (e.g., −10 °C).

How do I switch between light and dark theme?

Tap the settings icon in the top-right corner to open Settings, where you can switch between the light (极简白) and dark (暗夜霓虹) themes, and change the language between Chinese and English.

Unit Tools — 支持

长度、重量、温度、货币等多类别单位换算工具

获取帮助

有问题、Bug 反馈或建议？请发邮件至 fangvsyu@gmail.com，我们会尽快回复。

如何切换单位类别？

点击屏幕顶部的分类标签（长度、重量、温度、货币等）即可切换不同的单位类型。

如何更改换算的单位？

点击输入卡片或结果卡片上的单位标签，即可打开单位选择器并选择其他单位。也可以点击两张卡片之间的交换按钮，一键反转换算方向。

为什么货币汇率不是最新的？

汇率会在您打开货币分类时自动获取。点击汇率时间旁边的刷新图标可以手动获取最新汇率。更新汇率需要网络连接。

可以输入负数吗？

可以。键盘上有 +/− 键，可以输入负数，在温度换算（例如 −10 °C）时非常实用。

如何切换明暗主题？

点击右上角的设置图标进入设置，可以在极简白和暗夜霓虹两个主题之间切换，也可以切换中英文语言。