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