Adding months, weeks,and days

#include <iostream>
#include <inttypes.h>

int main(){
  
  int16_t months, weeks, days;
  
  std::cout<<"Enter months: ";
  std::cin>>months;
  
  std::cout<<"Enter weeks: ";
  std::cin>>weeks;
  
  std::cout<<"Enter days: ";
  std::cin>>days;
  
  float years = months * 0.0834f;
  years += weeks * 0.019f;
  years += days * 0.003f;
  
  std::cout <<"The sum of all the months,weeks, and days are " <<years <<" (virtual) years .\n";
  
}