How many mcg are in a mg?

1000. Every step on the microgram, milligram, gram ladder is a factor of a thousand.

How many mL are in a teaspoon?

A teaspoonful on a medicine label means 5 mL. A US customary teaspoon is 4.93 mL, and an actual kitchen teaspoon varies by several millilitres, which is why oral syringes are supplied with liquid medicines.

Is 1 cc the same as 1 mL?

Yes. A cubic centimetre and a millilitre are the same volume, and cc is still written on some syringes.

Medication Conversion Chart

Every conversion the calculators on this site use, generated from the same code they run on. Mass and volume first, then the strength notations, then what ordinary doses come to in millilitres.

Mass conversions: mcg, mg, g and kg

1 of this	in mcg	in mg	in g	in kg
1 mcg	1	0.001	1e-6	1e-9
1 mg	1000	1	0.001	1e-6
1 g	1000000	1000	1	0.001
1 kg	1000000000	1000000	1000	1

mcg to mg conversion table

Micrograms	Milligrams	Grams
1 mcg	0.001 mg	0.000001 g
5 mcg	0.005 mg	0.000005 g
10 mcg	0.01 mg	0.00001 g
25 mcg	0.025 mg	0.000025 g
50 mcg	0.05 mg	0.00005 g
100 mcg	0.1 mg	0.0001 g
125 mcg	0.125 mg	0.000125 g
250 mcg	0.25 mg	0.00025 g
500 mcg	0.5 mg	0.0005 g
1000 mcg	1 mg	0.001 g
2500 mcg	2.5 mg	0.0025 g
5000 mcg	5 mg	0.005 g

The mcg to mg converter runs any amount and shows it in all four units at once.

Volume conversions: mL, litres and spoons

1 of this	in mL	in L	in tsp	in tbsp	in fl oz
1 mL	1	0.001	0.2029	0.0676	0.0338
1 L	1000	1	202.8841	67.628	33.814
1 tsp	4.9289	0.0049	1	0.3333	0.1667
1 tbsp	14.7868	0.0148	3	1	0.5
1 fl oz	29.5735	0.0296	6	2	1

Teaspoon and tablespoon are the US customary values. A medicine label that says a 5 mL spoonful means exactly 5 mL, which is slightly more than a US teaspoon and is measured with the oral syringe in the box rather than with cutlery. 1 cc and 1 mL are the same volume.

Percentage and ratio strengths in mg/mL

Percentage	mg/mL	Ratio	mg/mL
0.45%	4.5	1:1,000	1
0.9%	9	1:10,000	0.1
1%	10	1:100,000	0.01
2%	20	1:200,000	0.005
3%	30
5%	50
10%	100
20%	200
25%	250
50%	500

A percentage is grams per 100 mL, so multiplying by ten gives mg/mL. A ratio is one gram in that many millilitres. The percent and ratio converter takes any value.

mg to mL at common oral liquid strengths

Strength	mg/mL	50 mg	100 mg	125 mg	250 mg	500 mg
120 mg/5 mL	24	2.08 mL	4.17 mL	5.21 mL	10.42 mL	20.83 mL
125 mg/5 mL	25	2 mL	4 mL	5 mL	10 mL	20 mL
160 mg/5 mL	32	1.56 mL	3.13 mL	3.91 mL	7.81 mL	15.63 mL
250 mg/5 mL	50	1 mL	2 mL	2.5 mL	5 mL	10 mL
400 mg/5 mL	80	0.63 mL	1.25 mL	1.56 mL	3.13 mL	6.25 mL

These figures hold only for the strength in the first column. For any other product themg to mL calculator takes the strength off the label in front of you, and theformulas page lists the equation behind every calculator here.

Questions about medication conversions

How many mcg are in a mg?: 1000. Every step on the microgram, milligram, gram ladder is a factor of a thousand.
How many mL are in a teaspoon?: A teaspoonful on a medicine label means 5 mL. A US customary teaspoon is 4.93 mL, and an actual kitchen teaspoon varies by several millilitres, which is why oral syringes are supplied with liquid medicines.
Is 1 cc the same as 1 mL?: Yes. A cubic centimetre and a millilitre are the same volume, and cc is still written on some syringes.