Controlled drug log calculators
Every calculator here runs in your browser; nothing you type is sent anywhere. Start with the running-balance calculator, or convert mg to mL at any concentration below. We keep and total your records; we do not give legal or compliance advice.
1 mL = 10 mg at 10 mg/mL
| Milligrams | 10 mg |
| Micrograms | 10,000 mcg |
| Milliliters | 1 mL |
| mg in 0.1 mL at this concentration | 1 mg |
| mL that holds 1 mg | 0.1 mL |
Runs in your browser; nothing you type is sent anywhere. Arithmetic for your records: we do not give legal or compliance advice.
Main calculator
mg to mL at a set concentration
Worked examples and checks
- Running balance on a controlled drug log, worked through
- How to reconcile a controlled drug log
- Waste volume: drawn up minus given
Printable sheets
- Biennial inventory count sheet
- Controlled substance waste log template
- Controlled drug register template
Quick reference: mg in 1 mL and mL in 10 mg
| Concentration | mg in 1 mL | mL that holds 10 mg |
|---|---|---|
| 1 mg/mL | 1 | 10 |
| 2 mg/mL | 2 | 5 |
| 5 mg/mL | 5 | 2 |
| 10 mg/mL | 10 | 1 |
| 20 mg/mL | 20 | 0.5 |
| 25 mg/mL | 25 | 0.4 |
| 50 mg/mL | 50 | 0.2 |
| 100 mg/mL | 100 | 0.1 |