Liquid Dose Volume Calculator

Work out liquid dose volume instantly with clear inputs, formula shown and shareable results.

About Liquid Dose Volume Calculator

Converts a milligram dose into a volume using the strength printed on the bottle, and totals the daily volume.

Formula

Liquid dose volume

Volume (mL) = prescribed dose / strength x volume that strength is contained in

Worked example

With the default values below, Liquid Dose Volume Calculator returns Volume per dose of 10.00. Change any input above and every figure here is recalculated in your browser.

Inputs used

Prescribed doseaccepts 0.1–10,000 mg: 250 mg
Strength of the preparationaccepts 0.1–5,000 mg: 125 mg
Contained in this volumeaccepts 0.1–100 mL: 5 mL
Doses per dayaccepts 1–6: 3

Results

Volume per dose: 10.00 mL
Volume per day: 30.00 mL
5 mL spoonfuls per dose: 2.00

Step by step

1Values used
2Liquid dose volume
3Volume per dose= 10.00 mL
4Volume per day= 30.00 mL
55 mL spoonfuls per dose= 2.00

Assumptions and limits

The result is derived only from the 4 inputs listed above. Anything not among them is not part of the calculation.
In particular, this calculator does not take inflation, tax, fees or charges or compounding frequency into account.
Figures are rounded for display to 2 decimal places, so totals built from several rounded parts can differ slightly from the unrounded arithmetic.
Educational estimate only. Not a substitute for professional clinical judgement, and must not be used to make treatment or dosing decisions.

How these calculators are built and tested is described on the Methodology page. If a figure looks wrong, please report it.

Educational estimate only. Not a substitute for professional clinical judgement, and must not be used to make treatment or dosing decisions.

Frequently Asked Questions

Why use an oral syringe?

Kitchen spoons vary by up to 50% in volume, so an oral syringe or measured spoon is required for accuracy.

Does the strength change between brands?

Frequently. Paediatric suspensions come in several strengths, so the label must always be checked.