How to convert int to float in C

Question

I am trying to solve   int total 0  number 0  float percentage 0 0   percentage  number total  100  printf    2f   percentage     If the value of the number is 50 and the total is 100  I should get 50 00 as percentage and that is what I want  But I keep getting 0 00 as the answer and tried many changes to the types but they didn t work

User · Answer

You are doing integer arithmetic  so there the result is correct  Try  percentage   double number total  100    BTW the  f expects a double not a float  By pure luck that is converted here  so it works out well  But generally you d mostly use double as floating point type in C nowadays

User · Answer

No  because you do the expression using integers  so you divide the integer 50 by the integer 100  which results in the integer 0  Type cast one of them to a float and it should work

User · Answer

This Should work Making it Round to 2 Point         int a 53214        parseFloat Math round a  100    100  toFixed 2

User · Answer

integer division in C truncates the result so 50 100 will give you 0  If you want to get the desired result try this      float number total  100   or   50 0 100

User · Answer

This can give you the correct Answer   include  lt stdio h gt  int main         float total 100  number 50      float percentage      percentage  number total  100      printf   0 2f  percentage       return 0

User · Answer

Integer division truncates  so  50 100  results in 0  You can cast to float  better double  or multiply with 100 0  for double precision  100 0f for float precision  first   double percentage         percentage   100 0 number total     percentage    double number total   100    or  float percentage         percentage    float number total   100     percentage   100 0f number total    Since floating point arithmetic is not associative  the results of 100 0 number total and  double number total   100 may be slightly different  the same holds for float   but it s extremely unlikely to influence the first two places after the decimal point  so it probably doesn t matter which way you choose

User · Answer

Change your code to   int total 0  number 0  float percentage 0 0f   percentage   float number total  100f  printf    2f    double percentage

User · Answer

I routinely multiply by 1 0 if I want floating point  it s easier than remembering the rules

User · Answer

This should give you the result you want   double total   0  int number   0  float percentage   number   total   100 printf    2f  percentage     Note that the first operand is a double

[c] How to convert int to float in C?

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