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Dosage Conversions
Conversions Using the Metric System and Household System
Term | Definition |
---|---|
1 kilogram (kg) means one thousand | 1000 grams |
1 hectogram (hg) means one hundred | 100 grams |
1 dekagram (dag) means ten | 10 |
1 gram (g) means one | one |
1 decigram (dg) means one-tenth | 0.1 gram (1/10) |
1 centigram (cg) means one-hundredth | 0.01 gram (1/100) |
1 milligram (mg) means one-thousandth | 0.001 (1/1000) |
1 microgram (mcg) means one-millionth | 0.000001 (1/1,000,000) |
1 nanogram (mg) means one-billionth | 0.000000001 (1/1,000,000,000) |
1 kiloliter (kL) | 1000 liters |
1 hectoliter (hL) | 100 liters |
1 dekaliter (daL) | 10 liters |
1 liter (l, L) | 1000 mL, 1 qt, 32 fl oz |
1 deciliter (dL) | 0.1 liter (1/10 liter) |
1 centiliter (cL) | 0.01 liter (1/100 liter) |
1 milliliter (mL) | 0.001 liter (1/1000 liter) |
1 kilometer (km) | 1000 meters |
1 hectometer (hm) | 100 meters |
1 dekameter (dam) | 10 meters |
1 metric (m) | 1 meter |
1 decimeter (dm) | 0.1 meter (1/10 meter) |
1 centimeter (cm) | 0.01 meter (1/100 meter) |
1 millimeter (mm) | 0.001 meter (1/1000 meter) |
1 drop (gt) (gtt) | 1 minim (m) |
1 teaspoon (t) | 60 drops (gtt) 5 mL |
1 tablespoon (T) | 3 teaspoons (t) |
1 ounce (oz) | 2 tablespoons (T) |
1 coffee cup (c) | 6-8 ounces (oz) |
1 medium-size glass | 8 ounces (oz) |
1 measuring cup | 8 ounces (oz) |
1 kg | 2.2 lb. |
0.5 L | 1 pt, 16 fl oz |
0.24 L | 8 oz |
30 mL | 2 T, 6 t, 1 oz |
15 mL | 1 T, 3 t, 1/2 oz |
4 mL | 1 t |
1 mL | 15-16 gtt (drops) |
2.54 cm | 1 inch |
25.4 mm | 1 inch |
To convert liters and quarts to ounces | multiply the number of liters by 32 |
To convert ounces to liters | divide the number of ounces by 32 |
To convert ounces to milliliters | multiply the number of ounces by 30 |
To convert milliliters to ounces | divide the number of milliliters by 30 |
To convert milliliters to drops | multiple the number of milliliters by 15-16 |
To convert drops to milliliters | divide the number of drops by 15-16 |
To convert grams to milligrams | move the decimal point three spaces to the right |
To convert milligrams to grams | move the decimal point three spaces to the left |
To convert inches to centimeters | multiply the number of inches by 2.54 |
To convert centimeters to inches | divide the number of centimeters by 2.54 |
To convert inches to meters | multiply the number of inches by 0.0254 |
To convert meters to inches | divide the number of meters by 0.0254 |
cap | capsule |
dr | dram |
elix | elixir |
g, gm, G, GM | gram |
gr | grain |
gtt | drops |
kg | kilogram |
l, L | liter |
m2 | square meter |
mcg | microgram |
mEq | milliequivalent |
mg | milligram |
mL, ml | milliliter |
m, min | minim |
oz | ounce |
pt | pint |
qt | quart |
SR | sustained release |
ss | one half |
supp | suppository |
susp | suspension |
T.O. | telephone order |
T, tbsp | tablespoon |
t, tsp | teaspoon |
V.O. | verbal order |
A.D., ad | right ear |
A.S., as | left ear |
A.U., au | both ears |
ID | intradermal |
IM | intramuscular |
IV | intravenous |
IVPB | intravenous piggyback |
KVO | keep vein open |
L | left |
NGT | nasogastric tube |
O.D., od | right eye |
O.S., os | left eye |
O.U., ou | both eyes |
PO, po, os | by mouth |
® | right |
SC, subc, sc, SQ, subQ | subcutaneous |
SL, sl, subl | sublingual |
TKO | to keep open |
Vag | vaginal |
AC, ac | before meals |
ad lib | as desired |
B.i.d., b.i.d., bid | twice a day |
c¯ | with |
hs | hour of sleep, bedtime |
s¯ | without |
NPO | nothing by mouth |
PC, pc | after meals |
PRN, prn | whenever necessary, as needed |
q | every |
aAM | every morning |
qh | every hour |
q2h | every 2 hours |
q4h | every 4 hours |
q6h | every 6 hours |
q8h | every 8 hours |
Q.i.d., q.i.d., qid | four time a day |
SOS | once if necessary, if there is a need |
STAT | immediately |
T.i.d., t.i.d., tid | three times a day |