Concentration = vial amount ÷ diluent volume
10 mg ÷ 2 mL = 5.00 mg/mL
OUTPUT IN mg/mLLAB TOOLS
Reconstitution calculator.
Work out concentration and volume for lab records. Arithmetic only — not instructions for use.
RESEARCH USE ONLY
HOW IT WORKS
Three lines of arithmetic.
Worked example: a 10 mg vial, 2 mL of diluent and a target of 0.5 mg per aliquot.
Volume = target quantity ÷ concentration
0.5 mg ÷ 5.00 mg/mL = 0.100 mL
mcg ÷ 1,000 = mg BEFORE DIVIDINGAliquots = diluent volume ÷ volume per aliquot
2 mL ÷ 0.100 mL = 20
ROUNDED DOWN TO WHOLE ALIQUOTSNEED BACTERIOSTATIC WATER?
Bacteriostatic Water
Review the laboratory supply specifications and batch documentation before preparation.
FAQ
Questions about the calculator
Something else? Contact the research desk.
Contact the research desk ↗What does this calculator do?
It performs concentration, volume per aliquot and complete aliquot arithmetic for laboratory records. It does not validate a protocol or give human-use instructions.
How is concentration calculated?
Divide the vial content in milligrams by the volume of diluent in millilitres. The result is milligrams per millilitre.
How is volume per aliquot calculated?
Convert the target quantity to milligrams, then divide it by concentration in milligrams per millilitre. One milligram equals 1,000 micrograms.
Can I use it for any product?
Use the tool only when your validated laboratory SOP and the exact batch documentation support the inputs. It does not determine compatibility, stability or appropriate quantities.
Where do I find the product’s net content?
Use the label and certificate for the exact batch and selected strength. Do not substitute a catalogue photograph or another strength’s artwork.