Common Conversions and Abbreviations

2.2 lb

1 kg

1 grain (gr)

65 mg

1 teaspoon (tsp)

5 ml

1 tablespoon (Tbs)

15 ml

3 teaspoons

1 fluid ounce (fl oz)

30 ml

1 cup

8 fl oz

240 ml

16 tablespoons

1 pint (pt)

480 ml

2 cups

16 ounces

1 quart

960 ml

2 pints

4 cups

32 ounces

1 gallon

3.84 L

4 quarts

8 pints

16 cups

1 ounce

2 tablespoons

1 liter

1000 ml

1 cc

1 ml

1 ml

1000 ul (mcl)

1 meter

100 cm

1 cm

10 mm

1 mm

1000 microns

1 kg

1000 g

1 g

1000 mg

1 mg

1000 ug (mcg)

°C

(F - 32) / 1.8

°F

(C x 1.8) + 32

IM

intramuscular

SQ or SC

subcutaneous (under skin)

IV

intravenous

PO

Per Os (placed in mouth and swallowed)

ID

intradermal (injected into skin)

IP

intraperitoneal (injected into abdominal cavity)

IA

intra-arterial (injected into artery)

PR

per rectum

O

ocular

OS

left eye

OD

right eye

OU

both eyes

A

aural

AS

left ear

AD

right earA

AU

both ears

q

every

h

hour

d

day

qid

four times dailyp

prn

as needed

ad lib

as desired

gtt

drop

IU

International units

NPO

nothing per os (nothing by mouth)

D/C

discontinue

IN

intranasal

IT

intrathecal

IO

intraosseous