diff --git a/calculator.rb b/calculator.rb
new file mode 100644
index 0000000..4b637d1
--- /dev/null
+++ b/calculator.rb
@@ -0,0 +1,88 @@
+# Welcome message
+puts "Welcome to the calculator program."
+
+# Instruction for choosing an operation
+puts "What operation do you want to do? Please choose one from the following list: "
+operations = ["add", "+", "subtract", "-", "multiply", "*", "divide", "/", "^", "%"]
+puts operations
+
+# Helper method to check user's choice
+def user_choice_check choices
+  user_choice = gets.chomp
+  until choices.include?(user_choice)
+    puts "Please make a valid choice: "
+    user_choice = gets.chomp
+  end
+  return user_choice
+end
+
+# Collect user's choice for operations
+user_operation = user_choice_check operations
+
+# Instruction for choosing a number type
+puts "What type of number are you entering? Please choose one from the following list: "
+number_types = ["integer", "float"]
+puts number_types
+
+# Collect user's choice for number types
+user_number_type = user_choice_check number_types
+
+# Helper method to check integer input
+def integer_check
+  integer_string = gets.chomp
+  integer = integer_string.to_i
+  until integer.to_s == integer_string
+    print "This isn't an integer. Please provide a valid input: "
+    integer_string = gets.chomp
+    integer = integer_string.to_i
+  end
+  return integer
+end
+
+# Helper method to check float input
+def float_check
+  float_string = gets.chomp
+  float = float_string.to_f
+  until float_string.include?(".") && (float.to_s == float_string)
+    print "This isn't a float. Please provide a valid input: "
+    float_string = gets.chomp
+    float = float_string.to_f
+  end
+  return float
+end
+
+# Collect numbers from user
+case user_number_type
+  when "integer"
+    print "Please provide the first integer: "
+    first_number = integer_check
+    print "Please provide the second integer: "
+    second_number = integer_check
+  when "float"
+    print "Please provide the first float: "
+    first_number = float_check
+    print "Please provide the second float: "
+    second_number = float_check
+end
+
+# Calculate and output result
+puts "Here is the result: "
+case user_operation
+  when "add", "+"
+    puts "#{first_number} + #{second_number} = #{first_number + second_number}"
+  when "subtract", "-"
+    puts "#{first_number} - #{second_number} = #{first_number - second_number}"
+  when "multiply", "*"
+    puts "#{first_number} * #{second_number} = #{first_number * second_number}"
+  when "divide", "/"
+    if second_number == 0
+      puts "For division, the divisor cannot be 0."
+    else
+      puts "#{first_number} / #{second_number} = #{first_number / second_number}"
+    end
+  when "^"
+    puts "#{first_number}^#{second_number} = #{first_number ** second_number}"
+  when "%"
+    puts "#{first_number} % #{second_number} = #{first_number % second_number}"
+end
+puts "Thank you for using the Calculator program."