Number System Converter
About Quinary (Base-5) & Senary (Base-6)
Quinary (Base-5) and Senary (Base-6) are numeral systems used in various cultures around the world. Base-5 is often linked to counting on the five fingers of one hand and is found in languages like Gumatj (Australia). Base-6 systems, sometimes used alongside Base-12 or Base-24 systems, are present in some Papuan languages (e.g., Kopo) and Nigerian languages. These "small base" systems are fascinating because they demonstrate diverse, often body-based, methods of counting that evolved independently of the now-dominant decimal system.
Quinary & Senary Calculator
Numeral System Utilities
Hand Counting Visualizer
See how a number is represented using hands โ the likely origin of base-5 counting. Each full hand is one "five"; the leftover fingers are the units digit.
Senary โ Time (Base-60 Sexagesimal)
Treats your base-6 number as a count of seconds and expresses it in hours : minutes : seconds โ the base-60 system we still use for time and angles. For example, senary 140 is 1ร36 + 4ร6 + 0 = 60 in decimal, which is 00:01:00 โ exactly one minute.
Reference Charts
Counting tables for 0โ30 and the place values (powers) that make each system tick.
Quinary (Base-5)
| Decimal | Quinary |
|---|
Senary (Base-6)
| Decimal | Senary |
|---|
Place Values (Powers)
| Position | 5แต | 6แต |
|---|