# FEUrea Calculator — Fractional Excretion of Urea

> Fractional Excretion of Urea (iPhone/iPad app by Krzysztof Gwiazda.)

- Source: https://appshunter.io/ios/app/feurea-calculator/id6460858599 (this page in markdown: same URL + `.md`)
- Developer: [Krzysztof Gwiazda](https://appshunter.io/developer/1546740383)
- Category: Utilities
- Price: Free
- Age rating: 4+
- Requires: iOS 12.1 · 13 MB
- Languages: English
- Released: 2023-08-11
- Data updated: 2026-05-16
- User reviews in markdown: https://appshunter.io/ios/app/feurea-calculator/id6460858599/reviews.md

## What is FEUrea Calculator?

Fractional Excretion of Urea (FEUrea).

Quick and easy to use FEUrea calculator.  Enter required data to get FEUrea percentage result:
Serum Urea/BUN:      mg\dL    or  mmol/L
Serum Creatinine:      mg\dL    or  µmol/L
Urine Urea:                 mg\dL    or  mmol/L
Urine Creatinine:        mg\dL   or  µmol/L

No fuss calculator. It does what it says on the tin.


## Version history (last 2 releases)

### 1.0.1 — 2024-01-09

EU GDPR consent form

### 1.0 — 2023-08-11

No release notes.

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## More apps by Krzysztof Gwiazda

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All apps by Krzysztof Gwiazda: https://appshunter.io/developer/1546740383

## Related topics

[feurea calculator](https://appshunter.io/ios/topics/feurea-calculator)

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-05-16.*