U.S. - Metric Weights 作者： Libor Benes (Dr. B)

Convert U.S. weights (grains, ounces, pounds, short tons, long tons, freight tons) and metric weights (milligrams, grams, decagrams, kilograms, metric tons).

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A user-friendly, intuitive popup interface for logistics/shipping, industrial applications, shopping, fitness, cooking, education, or basic scientific tasks.

Designed for security:
• minimal permissions, safe DOM methods, sanitized input, local conversion logic,
• no network requests, storage, or external dependencies.

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