Wasserstein Distance Calculator
Free online wasserstein distance calculator. Enter your values and get instant results with the formula, step-by-step working, a worked example and FAQs — everything runs locally in your browser on Calcton, no signup required.
原理:一维 Wasserstein-1 距离(推土机距离)等于两分布累积分布函数之差的绝对值积分:W1 = Σ|F_p(i) − F_q(i)|·Δ,本工具取等距网格 Δ = 1。它的直观图像是把 p 的「土方」搬到 q 的位置所需的最小功。
步骤:① 按网格顺序输入两个概率质量向量;② 点击计算;③ 读出 W1。
示例:p = (0.2, 0.3, 0.5)、q = (0.5, 0.3, 0.2) 时 W1 = 0.6;p = (0.1, 0.9)、q = (0.9, 0.1) 时 W1 = 0.8;p = (0.1, 0.2, 0.7)、q = (0.4, 0.1, 0.5) 时 W1 = 0.5。
注意事项:输入必须按网格位置顺序排列且等距——顺序颠倒结果无意义;W1 不要求两分布支撑对齐到同长以外的网格精度;与 KL/TV 不同,W1 感知「距离结构」——质量搬得越远罚得越重;生成模型的 WGAN 直接最小化本距离的神经网络版。
相关:总变差距离计算器忽略几何位置只看逐项差;Jensen-Shannon 计算器给出对数度量口径;正态分布计算器可配合做连续分布的直观比较。
How to use the Wasserstein Distance Calculator
- Fill in the inputs with your own numbers — every field shows what it expects.
- The result updates instantly as you type; no "Calculate" click needed.
- Read the result card for the main figure, the step-by-step formula, and practical notes.
Frequently asked questions
Is the Wasserstein Distance Calculator free?
Yes — all math calculators on Calcton are free, with no sign-up required. Your inputs are processed in your browser and never sent to a server.
Is there a Chinese version of this tool?
Yes. Use the Chinese version link above — it is the same calculator with the interface in Simplified Chinese.
References
Formulas and benchmarks used by this calculator follow these published sources.
KevinContent LeadCalcton Editorial Team · Last updated 2026-10-06
Kevin maintains Calcton's formula verification and content: every calculator cites the standard it implements, worked examples are recomputed programmatically, and health benchmarks follow WHO and international guidelines.
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