⛽ 油费计算器（公制或美制、往返、分摊）Gas Cost Calculator (Metric or US, Round Trip, Split)
按距离、油耗和油价算一次行程的油量和费用，支持公里与 L/100km 或英里与 mpg，可选往返并按人数分摊，同时给出每公里（英里）费用和两种油耗单位的换算。本地处理。Work out the fuel and cost of a trip from the distance, fuel economy and fuel price, in km with L/100 km or miles with mpg, optionally as a round trip and split between people, with the cost per km (mile) and the economy in the other unit. Processed locally.
使用说明与常见问题How-to & FAQ
「油费计算器（公制或美制、往返、分摊）」是什么？What is the Gas Cost Calculator (Metric or US, Round Trip, Split) tool?
按距离、油耗和油价算一次行程的油量和费用，支持公里与 L/100km 或英里与 mpg，可选往返并按人数分摊，同时给出每公里（英里）费用和两种油耗单位的换算。本地处理。Work out the fuel and cost of a trip from the distance, fuel economy and fuel price, in km with L/100 km or miles with mpg, optionally as a round trip and split between people, with the cost per km (mile) and the economy in the other unit. Processed locally.
如何使用「油费计算器（公制或美制、往返、分摊）」？How do I use the Gas Cost Calculator (Metric or US, Round Trip, Split) tool?
在「油费计算器（公制或美制、往返、分摊）」中，填写「单位」、「单程距离」、「油耗」、「油价」、「行程」等参数，结果会随输入实时计算并显示在下方。In the Gas Cost Calculator (Metric or US, Round Trip, Split): Fill in "Units", "One-way distance", "Fuel economy", "Fuel price", "Trip"; results are recalculated instantly as you type.
L/100km 和 mpg 怎么换算？How do L/100 km and mpg convert?
美制 mpg = 235.21 ÷ (L/100km)，反过来也一样：例如 7 L/100km ≈ 33.6 mpg，30 mpg ≈ 7.84 L/100km。英制加仑更大，英制 mpg = 282.48 ÷ (L/100km)。US mpg = 235.21 ÷ (L/100 km), and the same the other way: 7 L/100 km ≈ 33.6 mpg and 30 mpg ≈ 7.84 L/100 km. Imperial gallons are bigger, so imperial mpg = 282.48 ÷ (L/100 km).
算出来的费用准吗？How accurate is the cost?
结果只按平均油耗算。实际油耗受车速、空调、载重、路况和堵车影响，高速长途常比综合油耗低，市区拥堵更高。过路费和停车费没有计入。It uses the average economy only. Real consumption depends on speed, air conditioning, load, terrain and traffic: long motorway trips are often below the combined figure and city traffic above it. Tolls and parking are not included.
可以分摊吗？Can I split the cost?
可以，填写同行人数，页面给出每人应付的油费；选择往返会把距离加倍。Yes: enter the number of people and the per-person share is shown. Choosing Round trip doubles the distance.
能举个计算实例吗？Can you show a worked example?
例如在「油费计算器（公制或美制、往返、分摊）」中填 单位 = 公里、L/100km、每升价格，单程距离 = 100，油耗 = 8，油价 = 2，行程 = 单程，分摊人数 = 1，结果区显示：总距离：100 km；油量：8 L；总费用：16.00；每人：16.00；每公里费用：0.16；换算油耗：29.4 mpg；ℹ 油量 = 距离 ÷ 100 × L/100km；费用 = 油量 × 每升油价For example, entering Units = km, L/100 km, price per litre, One-way distance = 100, Fuel economy = 8, Fuel price = 2, Trip = One way, People sharing = 1 in the Gas Cost Calculator (Metric or US, Round Trip, Split) gives: Total distance: 100 km; Fuel used: 8 L; Total cost: 16.00; Per person: 16.00; Cost per km: 0.16; Economy in mpg (US): 29.4 mpg; ℹ fuel = distance ÷ 100 × L/100 km; cost = fuel × price per litre
哪些输入会被检查？Which inputs are validated?
「油费计算器（公制或美制、往返、分摊）」会检查这些输入——「单程距离」、「油耗」：必须填写，须大于 0；「油价」：所选方式用到时必须填写，不能为负数；「分摊人数」：须大于 0；绝对值超过 10¹⁵ 的数也会被拒绝。不符合时结果区显示具体提示，不会给出数字。The Gas Cost Calculator (Metric or US, Round Trip, Split) checks its inputs — "One-way distance", "Fuel economy": required, must be greater than 0; "Fuel price": required when the chosen option uses it, cannot be negative; "People sharing": must be greater than 0; numbers above 10¹⁵ in absolute value are rejected too. When a value fails, the result area names the problem instead of showing a number.
有哪些选项可以调整？What options can I adjust?
「油费计算器（公制或美制、往返、分摊）」的设置：「单位」可选 公里、L/100km、每升价格、英里、mpg（美制）、每加仑价格（默认 公里、L/100km、每升价格）；「单程距离」默认 400；「油耗」默认 7；「油价」默认 1.5；「行程」可选 单程、往返（默认 单程）；「分摊人数」默认 1。每次生成结果都按当前设置处理。Settings in the Gas Cost Calculator (Metric or US, Round Trip, Split) — "Units": km, L/100 km, price per litre, miles, mpg (US), price per gallon (default km, L/100 km, price per litre); "One-way distance" default 400; "Fuel economy" default 7; "Fuel price" default 1.5; "Trip": One way, Round trip (default One way); "People sharing" default 1. The result always uses the current settings.
计算结果可以作为最终依据吗？Can I rely on the result?
「油费计算器（公制或美制、往返、分摊）」按标准公式计算，结果仅供参考；实际金额以银行、券商或税务机关的规则和四舍五入方式为准。The Gas Cost Calculator (Metric or US, Round Trip, Split) uses standard formulas and is for estimation only; actual figures depend on your bank, broker or tax authority's rules and rounding.
「油费计算器（公制或美制、往返、分摊）」免费吗？需要注册吗？Is the Gas Cost Calculator (Metric or US, Round Trip, Split) free? Do I need an account?
「油费计算器（公制或美制、往返、分摊）」完全免费，无需注册或安装，打开网页即可使用，手机和电脑都能用；输入的内容只在你的浏览器本地处理。The Gas Cost Calculator (Metric or US, Round Trip, Split) is completely free with no sign-up or install and works on phones and desktops; what you enter is processed only in your browser.