If you use an external keyboard with PCalc, the following keys will act as shortcuts for functions, where available:
| Digits | 1-9 and A-F |
| Plus | + |
| Minus | - |
| Times | * |
| Divide | / |
| Modulo | Option / |
| Equals | = or Return |
| Decimal | . or , |
| Exponent | E |
| Clear | C or Clear |
| Clear All | Shift C |
| Clear Calculation | Option C |
| Sign | S |
| Delete Digit | Delete |
| Dec/Hex/Oct/Bin | Tab |
| Degrees/Radians/Grads | Y |
| RPN | R |
| Bitwise And | & |
| Bitwise Or | | |
| Bitwise Not | N |
| Bitwise Xor | X |
| Minimise | M |
| Memory Plus | H |
| Memory Minus | J |
| Memory In | K |
| Memory Recall | L |
| Swap with Memory | ~ |
| Swap with Y | ` |
| Power | ^ |
| Inverse Power | Option V |
| Percentage | % |
| Inverse | \ |
| Pi | P |
| Square | @ |
| Square Root | # or $ |
| Factorial | ! |
| Increment | > |
| Decrement | < |
| ASL | [ |
| LSR | ] |
| ROL | { |
| ROR | } |
| Open Parentheses | ( |
| Close Parentheses | ) |
| Enter (RPN) | = or Return |
| Drop (RPN) | D |
| Clear Stack (RPN) | Shift D |
| Swap (RPN) | W |
| Roll Down (RPN) | Q |
| Roll Up (RPN) | Shift Q |
| Show Tape | T |
| Show Registers / Stack | I |
| Cut | Command X |
| Copy | Command C |
| Paste | Command V |
| Undo | Command Z |
| Redo | Command Shift Z |