Science Struck
Science Struck: Liquid Measurement Conversion
Provides tables showing how to convert liquid measurements used for cooking between different customary units and metric units. Covers teaspoons up to gallons, as well as conversions to milliliters.
Other
Conversions for Weight Measurements
This site allows you to convert weight/mass measurements. For example converting tons to grams. CCSS.Math.Content.3.MD.A.2 Measure and estimate liquid volumes and masses of objects using standard units