Pressure Converter|压力单位换算

压力单位换算器 | Pressure Converter

压力单位换算器 Pressure Converter

在 Pa、kPa、MPa、bar、psi、atm 等常用压力单位之间快速换算,适合胎压、气泵、液压与工程标注。
Convert pressure between Pa/kPa/MPa/bar/psi/atm for tire pressure, compressors, hydraulics, and engineering use.

1. 输入参数 · Input
请输入你“表盘/标注”上看到的数字。常见胎压会落在 1.8–3.0 bar(大致范围,视车型/轮胎而定)。
Enter the number shown on your gauge/spec. Tire pressure often falls around 1.8–3.0 bar (rough range; depends on vehicle/tire).
快捷:Quick
工程上常见:kPa / MPa;胎压常见:bar / kPa / psi;气象或老设备偶见:mbar、kgf/cm²。
Common in engineering: kPa/MPa. Common for tires: bar/kPa/psi. You may also see mbar or kgf/cm² on older equipment.
胎压一般保留 1–2 位小数足够;工程计算或传感器标定可提高小数位。
For tire pressure, 1–2 decimals is usually enough. For engineering/calibration, you may want more.
✅ 已复制到剪贴板 / Copied
3. 使用说明 · Notes
  • 怎么用(最常见用法) · How to use (most common):
    在“压力数值”里输入数字,在“输入单位”选择你当前的单位(例如胎压表写的是 kPa 或 bar 或 psi),点击 “立即换算” 即可看到所有单位的换算结果。
    Enter the value, pick the unit shown on your gauge/spec, then click Convert to get all units at once.
  • 胎压提示:表压 vs 绝压 · Tire pressure: gauge vs absolute
    大多数汽车胎压表与车门贴纸标注的是 表压(Gauge pressure),也就是“相对于大气压的压力”。
    Most tire gauges and vehicle door placards use gauge pressure (relative to ambient atmosphere).
    本工具做的是“单位换算”,不判断表压/绝压;如果你拿到的是绝压(Absolute),请先确认是否需要减去当地大气压后再对照车辆推荐值。
    This tool converts units only. If your source is absolute pressure, confirm whether you need to subtract ambient atmospheric pressure before comparing to recommended tire specs.
  • bar 与 atm 很像,但不是同一个数 · bar vs atm (close but not equal):
    1 bar = 100,000 Pa,而 1 atm = 101,325 Pa。两者相差约 1.3%。日常估算接近,但工程标注请用正确单位。
    1 bar = 100,000 Pa while 1 atm = 101,325 Pa (~1.3% difference). Close for quick estimates, but use the correct unit in engineering work.
  • psi 常见于北美胎压 · psi is common in North America:
    如果你在加拿大/美国看到轮胎推荐值写 “35 psi”,可以直接输入 35 + 选择 psi,换算到 kPa/bar 用于国内设备。
    If you see “35 psi” (US/Canada), enter 35 with unit psi to convert into kPa/bar for devices using metric units.
  • mbar 与 hPa 的关系 · mbar and hPa:
    在气象领域,1 mbar = 1 hPa(数值相同)。本工具提供 mbar,便于你把气象数据与工程单位互转。
    In meteorology, 1 mbar equals 1 hPa (same numeric value). We include mbar to help you translate weather-related numbers to engineering units.
  • 复制功能 · Copy results:
    每个结果卡片右上角都可以“复制”。需要一次性保存全部单位结果时,点击 “复制全部”。
    Use “Copy” on any unit card, or “Copy all” to grab a full multi-line summary.
  • 输入异常提示 · Input validation:
    若输入为空、不是数字,或数值过大导致显示异常,工具会在输入区下方提示错误。
    If the input is empty/invalid (or extremely large causing display issues), an error message will appear under the input area.

免责声明:本工具仅进行单位换算与数值展示,不构成任何维修、工程设计或安全建议。胎压请以车辆制造商推荐值与实际工况为准。
Disclaimer: This tool performs unit conversion only. It is not maintenance, engineering design, or safety advice. For tire pressure, follow your vehicle manufacturer’s recommendations and real conditions.