Pregnancy Calculator Wheels

Answer gestational-age questions on the spot. eNurse's pregnancy calculator wheel slips into your pocket and lets you turn from last menstrual period to estimated due date, trimester milestones, and recommended weight gain in seconds. Also available, BMI Calculator Wheel — handy during antenatal visits -- and slots neatly beside your favourite reference cards. Expand your study materials with more tools from our nursing education range.

How accurate are pregnancy wheels?
They use a standard 280-day gestation model, providing reliable initial estimates that you can refine with ultrasound dating later.

Can students use them in exams?
Most nursing schools allow non-programmable wheels, but always double-check your faculty’s exam equipment policy.

Are metric and imperial units included?
Yes, outer rings list kilograms and pounds for weight as well as centimetres and inches for height to cover every scenario.

Do they replace digital apps?
Apps are convenient, yet a physical wheel works offline and reinforces the underlying calculation method for deeper understanding.