Tablespoon (Metric)
The metric tablespoon is a cooking unit equal to 15 milliliters. Introduced to simplify cooking and nutrition measurements in metric countries, it differs slightly from the US tablespoon (≈14.7868 mL). Metric tablespoons are widely used in recipes, labeling, and culinary schools, providing precise, repeatable measurements.
Liter (L)
The liter (L) is a metric unit of volume, representing 1,000 milliliters. It originated in France as part of the metric system reforms of 1795, initially defined as the volume occupied by one kilogram of water at its densest point. Over time, the liter became a fundamental unit for measuring liquids in science, industry, and everyday life. Its decimal structure makes calculations and conversions straightforward, contributing to its widespread adoption around the world, even as some regions continue to use imperial measures in certain contexts.