Guides
How the mixing actually goes
Plain-language walkthroughs of reconstitution, storage and technique, each one typically under three minutes.
Free, no account, nothing stored
Free peptide calculators.
Four calculators covering the arithmetic between a vial label and a mark on a syringe. They run in the browser, need no account, and store nothing you enter.
No accountNothing to sign up for, nothing to install.
Nothing storedThe numbers you type stay in your browser.
Shown, not just answeredEvery page shows the arithmetic behind its number.
Four calculators, one idea.
They differ in which end of the chain you start from, and in what each one explains along the way. Every answer arrives with the arithmetic that produced it.
The one calculation behind all four.
Every peptide calculation is the same three steps. Concentration is the vial strength divided by the diluent volume. Volume is the dose divided by that concentration. Units on a U-100 insulin syringe are that volume multiplied by 100.
- Concentration
vial mg ÷ water mLmg/mLWhat is actually in one millilitre, once the vial is mixed.
- Volume
dose mg ÷ concentrationmLA dose in mcg is divided by 1,000 first.
- Syringe units
volume mL × 100unitsA U-100 barrel is graduated at 100 units per millilitre.
| Step | Calculation | Result |
|---|---|---|
| Concentration | 5 mg ÷ 2 mL | 2.5 mg/mL |
| Dose in mg | 250 mcg ÷ 1,000 | 0.25 mg |
| Volume | 0.25 mg ÷ 2.5 mg/mL | 0.1 mL |
| Syringe units | 0.1 mL × 100 | 10 units |
Change the water and the mark moves. The same vial mixed with 1 mL puts the same dose at 5 units.
Keep reading.
Compared
Tracking tools, side by side
Spreadsheets, notes apps, web calculators and dedicated trackers all work. They fail in different places.
Work in the peptide space.
If your work already reaches this audience, there is a door here for you.
The math, already done.
Peptmate stores your vial setup once, so every scheduled dose already carries its unit figure. Doses log in a tap, and the vial counts itself down.
