Quaternary → Denary Converter
Same shape, different base — explore place value in powers of 4.
Type a Quaternary Number (digits 0-3)
Place Value Chart (powers of 4)
| 44 | 43 | 42 | 41 | 40 |
| 256 | 64 | 16 | 4 | 1 |
| _ | _ | _ | _ | _ |
| _ | _ | _ | _ | _ |
Type a quaternary number above and press Convert.
For students: right-align your base-4 number to the 1s column. Multiply each digit by its place value and add. Solve on paper first, then check here. Digits 4-9 are illegal in base 4 — the input box rejects them.