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Everyday math Issue 01 / 2026

Everyday questions, finally added up.

Interactive tools for your time, money, daily life, and the world around you—without sign-up or unnecessary complexity.

Build my receipt
  • No sign-up
  • Calculators stay private
  • Instant results
01

Explore by category

One useful place.
Many kinds of questions.

Start with what you want to understand. Every tool gives you an answer before it gives you an explanation.

01

Time & Date

Ages, countdowns, routines, sleep, and the hours that quietly add up.

 02

Money

Salary, subscriptions, habits, and what a purchase costs in working time.

 03

Daily Life

Coffee, water, commuting, scrolling, and ordinary choices made visible.

 04

Fun & Curious

Personal results worth comparing, discussing, or sharing with a friend.

 05

World & Compare

Put countries side by side and make large geographic numbers easier to grasp.

Current price guides

Check the price before you add up the habit.

Browse current, menu-based coffee price ranges across thirteen global cities, then use the calculator with a realistic local number.

13 cities · Community prices open Browse coffee prices
02

A little context first

Useful ideas,
not just inputs.

Short explanations connect the numbers to ordinary decisions—without turning every answer into advice.

Time & date

A date can tell more than your age.

Calendar math turns a birthday into lived days, approaching milestones, and the exact distance to the next celebration.

Count days aliveOpen birthday countdown
03

The tool index

Small habits.
Unexpected sums.

Choose a routine, adjust a few honest numbers, and see where the math takes you.

NEW 01New

Country Size Comparison

Put two countries on the same land-area scale and see how many times one fits inside the other.

Compare countries
NEW 02Fun

Random Questions

Icebreakers, thoughtful prompts, and better questions for people you know.

Get a question
NEW 03Time + fun

Days Until New Year

A live countdown to midnight, with the year’s progress shown alongside it.

Start the countdown
NEW 04New

Days Alive

Turn your birthday into days, weeks, hours, and the next satisfying milestone.

Count my days
NEW 05Money

Salary to Hourly

See your pay per hour—and what a purchase costs in working time.

Convert my pay
NEW 06Time + fun

Birthday Countdown

See the exact days, hours, and minutes until your next birthday.

Start the countdown
001 Most tried

Red Light Wait

How much of your life has happened between red and green?

Calculate time
002Money

Coffee Budget

Your daily cup, counted across years.

Add it up
002BNew

Habit Cost

Any repeat purchase, counted across months and years.

See the total
003Time

Scroll Time

Turn daily screen minutes into weeks and years.

Track time
004New

Sleep Debt

Those missing hours do not disappear. See what your sleep gap adds up to.

Count the hours
005Life

Commute Time

Every trip to work, collected into one total.

Measure it
006Wellbeing

Shower Time

Minutes under water, counted as full days.

Run the numbers
007Money

Subscriptions

The quiet monthly charges, all in one place.

Total the stack
008Money + fun

Takeout Spending

Delivery nights, service fees, and comfort food—added up without judgment.

See the total
009Fun

Streaming Stack

Every service, every month, one honest sum.

Check the stack
010New

Daily Water Goal

Glasses, liters, and one gentle reminder for today.

Check today's water

Seventeen interactive tools here. Browse the full collection by category.

Browse every tool
04

Go one level deeper

Popular pairs.
Better questions.

Start with a complete guide, then open the interactive tool when you want a different result.

05

Shared only by choice

Receipts from
ordinary lives.

Explore anonymous routine totals by city, or build your own and decide whether to share it.

Browse all receipts