Bmi Calc

Gem to calculate BMI

Installation

Add this line to your application's Gemfile:

gem 'bmicalc'

And then execute:

$ bundle

Or install it yourself as:

$ gem install bmicalc-qwertme

Usage

Metric

require 'bmicalc'

bmi = Bmicalc.new
bmi.calculate(64, 178) # 20.199469763918696

Imperial

bmi = Bmicalc.new(units: :imperial)
bmi.calculate(141, 71) # ~20

WHO BMI classification

bmi = Bmicalc.new
bmi.classification(27) # 'overweight'
bmi.sub_classification(27) # 'pre-obese'

Forked from http://github.com/tomkadwill/bmicalc and heavily modified