numbr

Documentation

Numbr is a smart calculator combined with a notepad. You can use notes with numbers alongside each other. Use words around your calculations, so that they will make sense later.

$500 for tickets + $70 for a taxi

Formatting

Use # symbol at beginning of a line to mark it as a header.

Use : colon to mark first part of line as description.

Numbers

• 0.5 + .5 - decimal numbers
• 1k - one thousand
• 1 000 000 - million with spaces
• 1,000,000 - million with commas
• 1M - million with letter

Operators

Supported operators +, -, * or x, /, %, ^.

• Modulus via 12 % 10
• Exponent via 2 ^ 3
• Percentage addition 100 + 25%
• Percentage subtraction 100 - 25%
• Percentage calculation 25% of 100 or 100 * 25%

Currencies

Numbr can do math with lots of currencies. Currency exchange rates are updated every hour.

Use currency symbols ($, €, ₽, £, ¥, ₩) or ISO codes:

• $100 + 50EUR
• 20CAD in USD

Numbr supports cryptocurrencies as well:

• 1 btc in usd
• 1 eth in doge
• 10 xrp in ada

Sum

Numbr can summarize results by using total or sum operators. Calculations are done up to the nearest header:

## header 1

Milk $3
Eggs $2
Sugar $1
Flour $5
Total

## header 2

100k usd
10 btc
1M chf
Sum

References

Numbr supports referencing calculation results. Click on the answer to copy, and paste to reference, or press Alt+Enter to put the current answer on the next line.

100 + 200                 | 300
(300) + 25%               | 375

Variables

Numbr supports variables with = operator. Variable names are case-insensitive and can contain letters, numbers and spaces:

iPhone 15 = $998
AirPods Pro = $249
Price difference: iphone 15 - airpods pro