| Icon | Plugin | Description |
| | DoubleAdd | Add two double inputs and produce their sum as output |
| | DoubleDivide | Divide two double inputs and produce their quotient as output |
| | DoubleExpression | Calculates a C-style expression, returning a double value as output |
| | DoubleModulo | Modulo two double inputs and produce their remainder as output |
| | DoubleMultiply | Multiply two double inputs and produce their product as output |
| | DoubleSine | Applies a sine function to its input |
| | DoubleSourceScript | Data source that uses a script to create a k3d::double_t output value |
| | DoubleSubtract | Subtract two double inputs and produce their difference as output |
| | DoubleToString | Converts a double to a string using printf() style double_to_stringting |