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Child Water & Fluid Intake Calculator

kg

Result

Calculated result 1500 Based on the values entered.
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Child Water & Fluid Intake Calculator — free online calculator.

Formula

Holliday-Segar: 100 ml/kg (first 10 kg) + 50 ml/kg (next 10 kg) + 20 ml/kg (over 20 kg)
  • Child Water & Fluid Intake Calculator calculates its result from Weight (kg). It uses the formula Holliday-Segar: 100 ml/kg (first 10 kg) + 50 ml/kg (next 10 kg) + 20 ml/kg (over 20 kg). Change any input to recalculate the result instantly. This is an informational calculation and is not medical advice.
  • The main inputs are Weight. Enter them in the units and format shown in the calculator.
  • Use the measurement units shown beside each field. The result is an estimate and should be interpreted in context.
  • Changing any input above recalculates the result with the same calculation engine used by this page.

Example: Child Water & Fluid Intake

Inputs
  • Weight: 20 kg

Using Weight (kg) = 20, the calculated result is 1500.

Sample result: Calculating…

Frequently asked questions

What does the Child Water & Fluid Intake calculate?

Child Water & Fluid Intake Calculator — free online calculator.

Which values should I enter?

Enter Weight using the units and format shown beside each field.

What formula does this calculator use?

The calculator uses the following relationship: Holliday-Segar: 100 ml/kg (first 10 kg) + 50 ml/kg (next 10 kg) + 20 ml/kg (over 20 kg).

Why might my result differ from another source?

Results can differ because measurement methods, rounding and assumptions vary. This calculator is an estimate and is not a medical diagnosis.

Does the result update automatically?

Yes. Changing an input updates the result using the same calculation engine shown on this page.

Page information

Updated: October 7, 2026