numcal. / NUMBER TOOLS — PLATE 04

Everyday number work.

Eight small instruments for the arithmetic your phone’s calculator makes fiddly. Free, instant, nothing sent anywhere.

Money

PercentageX% of Y · X is what % of Y · change from X to Y VATadd or remove it — with European rates built in Tip & splitthe restaurant maths, done at the table Compound interestsavings growth, year by year Loan payoffwhat extra payments do — with the charts to prove it

Shop & kitchen

Unit pricewhich package is actually cheaper? Recipe scaler6 servings → 4, in kitchen fractions

The numbers themselves

Number to words1,234 → one thousand two hundred thirty-four

Field notes

Can I type European decimals?

Yes — 12,5 and 12.5 both work, and thousands separators are fine (1,234.56 or 1.234,56). A lone comma followed by exactly three digits, like 1,234, is read as one thousand two hundred thirty-four.

Where does this run?

Entirely in your browser. Numbers you type are never sent anywhere — there is no server doing the math, no analytics watching you do it.