Conversions 1 Gram (gm) 1000 milligrams (mg) Multiply by 1000 convert gm to mg (move decimal 3 places to the right) Divide by 1000 to convert mg to gm (move decimal 3 places to the left) 1 milligram (mg) 1000 micrograms (mcg) Multiply by 1000 to convert mg to mcg (move decimal 3 places to the right) Divide by 1000 to convert mg to mcg (move decimal 3 places to the left) 1 grain 65 milligrams (mg) Convert grains to mg by Multiplying by 65 Convert mg to grains by Dividing by 65 1 Liter (L) 1000 milliliters (ml) Multiiply by 1000 to convert L to ml (move decimal 3 places to the right) Divide by 1000 to convert ml to L (move decimal 3 places to the left) I milliliter (ml) 15 drops (gtts) Multiply by 15 to convert ml to gtts (IV tubing note – can have gtt factors of 10, 15, 20) (or minidrip / microdrip 60) Divide by 15 to convert gtts to ml 5 ml 1 teaspoon (tsp) Convert ml to tsp By dividing by 5 Convert tsp to ml By multiplying by 5 15 ml 3 teaspoons 1 Tablespoon 1 ounce (oz) 30 ml 2 Tablespoons (6 teaspoons) 1 kilogram (kg) 2.2 pounds (lbs) Divide lbs by 2.2 to get Kg Multiply Kg by 2.2 to get pounds 1 inch 2.54 centimeters (cm) 1 centimeter (cm) 10 millimeters Units of measurement often used To measure wounds, incisions, NG tube or ET tube placement Know all conversions in both directions!