The following tables show the units of measurement commonly used in pharmacy, nursing and medicine scenarios. In addition, they list the conversion between different units of measure.
Keep these units of measurement in mind as you may need to convert from one unit of measurement to another (e.g. milligram to microgram) in various situations. One example is when calculating drug dosages.
Conversion Between Units of Measure Tables
Mass
|
1 kilogram (kg) |
= |
1000 grams (g) |
|
1 gram (g) |
= |
1000 milligrams (mg) |
|
1 milligram (mg) |
= |
1000 micrograms (mcg or µg) |
|
1 microgram (mcg or µg) |
= |
1000 nanograms (ng) |
|
1 nanogram (ng) |
= |
1000 picograms (pg) |
Volume
|
1 litre (L) |
= |
1000 millilitres (mL) |
|
1 millilitre (mL) |
= |
1000 microlitres (µL) |
Units of Measurement Drug Calculations Quiz
Practice converting from one unit of measurement to another with these drug calculations.
1. Convert 540 grams to kilograms?
Answer
0.54
2. Convert 3000 g to kilograms?
Answer
3
3. Convert 0.7 kg to grams?
Answer
700
4. Convert 0.4 grams to milligrams
Answer
400
5. Convert 0.36 grams to milligrams
Answer
360
6. Convert 0.21 grams to milligrams
Answer
210
7. Convert 425 milligrams to grams
Answer
0.425
8. Convert 4500 milligrams to grams
Answer
4.5
9. Convert 56000 milligrams to grams
Answer
56
10. Convert 0.006 milligrams to nanograms
Answer
6000
11. Convert 16 mcg to nanograms
Answer
16000
12. Convert 2400 ng to micrograms
Answer
2.4
13. Convert 5000 nanograms to mcg
Answer
5
14. Convert 1.67 L to millilitres
Answer
1670
15. Convert 5600 millilitres to litres
Answer
5.6
16. Convert 100mL to litres
Answer
0.1
17. Convert 5800 microlitres to millilitres?
Answer
5.8
18. Convert 3560 millilitres to litres
Answer
3.56
19. Convert 550 millilitres to litres
Answer
0.55
20. Convert carbimazole 40000 micrograms to milligrams?
Answer
40
21. Convert levothyroxine 0.075 milligrams to micrograms?
Answer
75
22. Convert terbutaline 5000000 nanogram to milligram?
Answer
5
23. Convert 4500 milligrams to grams
Answer
4.5
24. Convert 56000 milligrams to grams
Answer
56
25. Convert beclometasone 0.2 milligrams to micrograms?
Answer
200
26. Convert alfacalcidol 0.25 micrograms to nanograms?
Answer
250 nanograms
27. Convert calcitriol 0.75 mcg to nanograms?
Answer
750
28. Convert 0.2 litres of amoxicillin suspension to millilitres
Answer
200
29. Convert erythromycin 0.3 litres to millilitres?
Answer
300
30. Convert chloramphenicol eye drops 0.01 litres to millilitres
Answer
10
31. Convert emulsiderm emollient 1000 milliltres to litres?
Answer
1
32. Convert zinc and castor oil ointment 500 grams to kilograms?
Answer
0.5
33. Convert peppermint oil 0.2 millilitres to microlitres?
Answer
200
34. Patient is prescribed mesalazine 800 mg three a day, what is the total daily dose in grams?
Answer
2.4