# Conversion between metric units (mg to g, mcg to mg, mg to kg)

In nursing, the metric units that are use often are the following:

Weights from biggest to smallest value :

kg = kilogram

g = gram

mg = milligram

mcg = microgram

Volume:

L = liter

mL = milliliter

Relationship between the units:

1 kg = 1000 g

1 g = 1000 mg

1 mg = 1000 mcg

1 L = 1000 mL = 1000 cc

Notice that each unit differs from the one right below it by 1000. In other words, the unit immediately below is 1000 times smaller than the one immediately above

Study carefully this guideline that will help you to convert between the units

Conversion down the scale:

To convert from kg to g, multiply by 1000 or just move the decimal point 3 places to the right

To convert from g to mg, multiply by 1000 or just move the decimal point 3 places to the right

To convert from g to mcg, multiply by 1000000 or just move the decimal point 6 places to the right

To convert from L to mL, multiply by 1000 or just move the decimal point 3 places to the right

Conversion up the scale:

To convert from g to kg, divide by 1000 or just move the decimal point 3 places to the left

To convert from mg to g, divide by 1000 or just move the decimal point 3 places to the left

To convert from mcg to g, divide by 1000000 or just move the decimal point 6 places to the left

To convert from mL to L, divide by 1000 or just move the decimal point 3 places to the left

Example #1:

Convert 4 g to mg

The decimal point is on the right of 4. Move the point 3 places to the right. Add zeros if needed

4.

40.

400.

4000.

4 g = 4000 mg

Example #2:

Convert 0.04 g to mg

The decimal point is between the two zeros. Move the point 4 places to the right. Add zeros if needed

0.04

0.4

4.

40.

0.04 g = 40 mg

Example #3:

Convert 2650 mg to g

The decimal point is on the right of 0. Move the point 3 places to the left. Add zeros if needed

2650.

265.0

26.50

2.650

2650 mg = 2.650 g

Example #4:

Convert 500 mcg to mg

The decimal point is on the right of 0. Move the point 3 places to the left. Add zeros if needed

500.

50.0

5.00

0.500

500 mcg = 0.5 mg

Example #5:

Convert 90000 mg to kg

The decimal point is on the right of 0. Move the point 6 places to the left. Add zeros if needed

90000.

9000.0

900.00

90.000

9.0000

0.90000

0.090000

90000 mg = 0.09 kg

Example #6:

Convert 3584 mL to L

The decimal point is on the right of 4. Move the point 3 places to the left. Add zeros if needed

3584.

358.4

35.84

3.584

3584 mL = 3.584 L

 Conversion between metric for nurses quiz:

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