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  1. Home
  2. /Free Tools
  3. /Pediatric TFI Calculator
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Title

Nursing guide

Exam-focused context for this calculator. For clinical care, follow orders, policies, and local protocols.

Frequently asked questions

What does TFI mean in pediatrics?+

TFI stands for total fluid intake, the sum of all fluids a child receives over a period, often expressed per kilogram of body weight because pediatric fluid needs are weight-sensitive.

How do you calculate mL/kg/hr?+

Divide the total intake in millilitres by the weight in kilograms and then by the number of hours: mL/kg/hr = total intake ÷ weight (kg) ÷ hours.

How do you calculate pediatric urine output?+

Divide urine output in millilitres by the weight in kilograms and then by hours: urine mL/kg/hr = urine ÷ weight (kg) ÷ hours.

Why is weight important in pediatric fluid calculations?+

Children vary widely in size, so fluid intake and output are interpreted per kilogram. Convert pounds to kilograms first using kg = lb ÷ 2.2.

Can this calculator be used for real patient-care decisions?+

No. It is for nursing education and exam preparation only. Real pediatric fluid decisions must follow provider orders, weight-based protocols, assessment, and policy.

These answers are for nursing education and exam practice only and do not provide patient-specific medical advice.

hr

Intake sources (mL)

mL
mL
mL
mL
mL
mL
mL
  • Enter a time period (hours) to calculate rates.

Safety

For nursing education and exam preparation only. Pediatric fluid intake calculations must be verified with provider orders, institutional policy, weight-based protocols, clinical assessment, and pharmacist/provider guidance. Do not use this tool to make real patient-care decisions.

Want more practice?

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