Pressure of normal uterine contractions is between 190-300. Units in terms of which units.

1 montevideo unit = Intensity of constraction x number of contractions in 10 mins. Montevideo unit is to define uterine activity. As per this: Clinical labour usually commences when uterine activity reaches values between 80-120 Montevideo units (This translates into approximate 3 contractions of 40 mm of Hg every 10 minutes). During labour – Normal uterine contractions are between 190 – 300 Montevideo units (At the time of delivery it is 300 Montevideo units) Extra Edge Uerine contractions are clinically palpable only after their intensity exceeds > 10 mm of Hg Uterine contractions are not associated with pain unless their intensity is > 15 mm of Hg.