Base-60 Numeral Calculator & Converter

Babylonian Numeral Converter

Babylonian → Decimal
Decimal → Babylonian
Decimal Value

About Babylonian Numerals

The Babylonian numeral system was sexagesimal (base-60). It used cuneiform symbols on clay tablets.

Symbols: (1) and (10). Groups of these form digits 1-59.

Place Value: Groups are separated by spaces. The rightmost group is units (60⁰), the next left is 60¹, then 60², etc.

Example: ▼ ◄▼▼ represents (1 × 60¹) + (10 + 1 + 1 × 60⁰) = 60 + 12 = 72.

This converter uses space as the place separator and covers numbers up to 359,999.

Babylonian Numeral Calculator

Result

How It Works

The calculator converts the Babylonian numerals to decimal, performs the calculation, and converts the result back to Babylonian.

Input format: Use for 1, for 10, and spaces between place value groups. Each group must represent a value from 1 to 59.

Results are limited to positive integers between 1 and 359,999. Division results are floored.

Babylonian Numeral Reference

Basic Symbols

SymbolValue
1
10

These are combined additively within a place value group (up to 59).

Place Value (Base-60)

Groups of symbols represent digits (1-59) in a base-60 system. Spaces separate the groups (place values).

Rightmost group: × 60⁰ (× 1)

Next group left: × 60¹ (× 60)

Next group left: × 60² (× 3600)

...and so on.

Example: ▼ ◄▼▼ = (1 × 60¹) + (12 × 60⁰) = 60 + 12 = 72

Examples (1-59)

DecimalBabylonian
1
9▼▼▼▼▼▼▼▼▼
10
11◄▼
23◄◄▼▼▼
59◄◄◄◄◄▼▼▼▼▼▼▼▼▼

Examples (> 59)

DecimalBabylonianCalculation
60(1 × 60¹)
61▼ ▼(1 × 60¹) + (1 × 60⁰)
70▼ ◄(1 × 60¹) + (10 × 60⁰)
135▼▼ ◄▼▼▼▼(2 × 60¹) + (15 × 60⁰)
3600(1 × 60²)
3671▼ ▼ ◄▼(1 × 60²) + (1 × 60¹) + (11 × 60⁰)

Babylonian Challenge

Convert the displayed Babylonian numeral to a decimal number.

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