By strength
Eight strengths, eight pages. If your solution is labelled in milligrams per millilitre, the whole conversion is already worked out for it.
Educational arithmetic only. Not medical advice and not a dosing protocol.
- 0.5 mg/mL
A 500 mcg amount is 1.000 mL here, which is 100.00 units on a U-100.
- 1 mg/mL
A 500 mcg amount is 0.500 mL here, which is 50.00 units on a U-100.
- 1.25 mg/mL
A 500 mcg amount is 0.400 mL here, which is 40.00 units on a U-100.
- 2 mg/mL
A 500 mcg amount is 0.250 mL here, which is 25.00 units on a U-100.
- 2.5 mg/mL
A 500 mcg amount is 0.200 mL here, which is 20.00 units on a U-100.
- 4 mg/mL
A 500 mcg amount is 0.125 mL here, which is 12.50 units on a U-100.
- 5 mg/mL
A 500 mcg amount is 0.100 mL here, which is 10.00 units on a U-100.
- 10 mg/mL
A 500 mcg amount is 0.050 mL here, which is 5.00 units on a U-100.
Before you act on that number
This is educational arithmetic on figures entered by the reader. It is not medical advice, not a dosing protocol, and not a recommendation that anything be prepared, obtained or administered.
Nothing here states what quantity is appropriate for anyone, and there is no function in it that produces an amount to administer. A question about anyone’s health belongs with a licensed clinician who can examine the person asking.
Compounds of the kind this arithmetic is used on are largely research chemicals that are not approved by the FDA for human use. An exact calculation is not an accurate measurement: what is actually in a syringe depends on the preparation and the device, neither of which this page can see.
No qualified clinical reviewer is recorded against this site, and no credential is claimed anywhere on it. what this is not, at full length.
| Strength | 250 mcg | 500 mcg | 1 mg |
|---|---|---|---|
| 0.5 mg/mL | 0.500 mL | 1.000 mL | 2.000 mL |
| 1 mg/mL | 0.250 mL | 0.500 mL | 1.000 mL |
| 1.25 mg/mL | 0.200 mL | 0.400 mL | 0.800 mL |
| 2 mg/mL | 0.125 mL | 0.250 mL | 0.500 mL |
| 2.5 mg/mL | 0.100 mL | 0.200 mL | 0.400 mL |
| 4 mg/mL | 0.063 mL | 0.125 mL | 0.250 mL |
| 5 mg/mL | 0.050 mL | 0.100 mL | 0.200 mL |
| 10 mg/mL | 0.025 mL | 0.050 mL | 0.100 mL |
Why these eight
Because they are what the common vial and diluent combinations produce. A 5 mg vial in 2 mL is 2.5 mg/mL; in 1 mL it is 5 mg/mL; a 10 mg vial in 5 mL is 2 mg/mL. The eight strengths here cover the arrangements that actually turn up on labels, rather than a tidy arithmetic series that happens to include strengths nobody prepares.
If your label says something else, the calculator takes any figure. These pages exist for the common cases and for anyone who would rather read a table than fill in a form.
Every figure here was computed, not typed
The tables on these pages are generated at build time by the same code that answers the calculator on the home page. A test checks a sample of the cells against that calculator directly, which means a table on this site cannot drift away from the panel that should agree with it.
It also means they can be checked by hand. Every page states the division it is performing, in enough detail to reproduce any cell with a pocket calculator.