MVU Calc - Montevideo Units

NOTICE: This app is a calculator tool for educational and reference purposes only. It is not a medical device and should not be used for clinical decisions. Always seek a doctor's advice before making any medical decisions.

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A simple Montevideo Units (MVU) calculator. Enter resting tone and contraction peaks, get the MVU result instantly with a visual gauge.

KEY FEATURES:

- MVU Gauge — Semicircular gauge with animated needle and color-coded zones
- Quick Templates — One-tap presets for common input scenarios
- Calculation History — All calculations saved automatically, grouped by date, with export support
- Reference Ranges — Color-coded results based on published literature
- Dark Mode — Full Light and Dark mode support
- iOS Widget — Glanceable MVU results on your Home Screen
- 7 Languages — English, Chinese, Spanish, French, German, Japanese, Korean

WHAT ARE MONTEVIDEO UNITS?

MVU (Montevideo Units) is a measurement of uterine contraction strength, introduced by Caldeyro-Barcia et al. at the University of Montevideo in 1957. The formula sums the amplitude of each contraction (peak minus resting tone) over a 10-minute window.

Educational reference ranges:
Under 95 MVU: Lower range
95 to 200 MVU: Typical range
200 to 400 MVU: Higher range
Over 400 MVU: Very high range

Sources:
- Caldeyro-Barcia R, et al. "A quantitative study of the action of synthetic oxytocin on the pregnant human uterus." J Pharmacol Exp Ther. 1957;121(1):18-31.
- ACOG Practice Bulletin No. 49: Dystocia and Augmentation of Labor. Obstet Gynecol. 2003;102(6):1445-1454.

PRIVACY AND DATA

All data stored locally on your device
No account required, no cloud upload, no data collection