This is a 24-page PDF that addresses 6.RP.A.3d. It includes practice converting capacity (fluid ounces, cups, pints, quarts, gallons, liters, cubic centimeters), linear units (inches, feet, yards, centimeters, miles, kilometers), and weight (ounces, pounds, kilograms, tons).
There is a 24-card task card set that includes a recording sheet and an answer key. Each card gives the student the conversion factor and then presents the units to be converted. There are 4 cards per page for 6 pages, a