Arithmetic

5 + 3
10 minus 5
5 times 3
20 divided by 4
2 ^ 10
(5 + 3) x 2
-5 + 3

Currency & percentages

$100 + $50
€200 x 3
20% of $500 → $100
10% off $30 → $27
$100 - 20% → $80
50 is what % of 200 → 25%
50 USD in EUR → convert
$100 to GBP
AU$100 in JPY → or $100 AUD

A bare $ means your own currency, based on your timezone. Other currencies keep their label, so 100 USD shows as US$100.00.

20 currencies: USD, EUR, GBP, AUD, CAD, NZD, JPY, CHF, CNY, INR, SGD, HKD, KRW, SEK, NOK, DKK, BRL, ZAR, MXN, THB

Variables & totals

days = 15
food: $12 x days → $180
transport: $3.50 x days
sum → $232.50

= for constants, : or is for values included in sum/avg.
Also minimum, maximum and count.

Unit conversions

5km in miles
100f to c
2 cups in ml
1 gallon in l
1.5tbsp in grams
2 lb in kg
3 sqft in sqm

Length: mm, cm, m, km, inch, ft, yard, mile
Mass: mg, g, kg, oz, lb, stone, tonne
Area: sqm, sqft, acre, hectare, sqkm, sqmi
Volume: tsp, tbsp, floz, cup, pint, quart, l, gallon, ml
Speed: km/h, mph, m/s, ft/s, kn/knot
Data: b, kb, mb, gb, tb
Temp: celsius, fahrenheit, kelvin

Timezones & dates

3:30pm EST in UTC
now in PST
today
5 days from now
5 days ago
days in 2025 → 365

More

$1000 for 5 years at 3% monthly
$1000 at 5% for 18 months
prev + 5 → previous result

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