World Life SimulatorPopular
Compare population, GNI, price-level indicator, OECD wages, life expectancy, and fertility for 2–5 countries using verified public statistics only.
Tools
Tools
Results update instantly. Sharing and favorites are optional.
Popular Tools
Tools opened most often recently.
World Holiday & Business Day PlannerPopular
Country holiday calendars, business-day estimates, common business days across countries, and leave bridging around weekends and public holidays.
Currency ConverterPopular
Convert amounts with Frankfurter reference rates. Multi-currency, historical dates, and a history chart.
Recommended Tools
Related calculators worth trying next.
Shopping & Effective Price Calculator
Combine unit price, discounts, tax, and points to rank effective cost.
Recurring cost calculator
Convert subscriptions and fixed costs into monthly, annual, and 5-year totals.
Discount & Coupon Calculator
Sequential % discounts plus fixed coupons, and reverse from a final price.
All Tools
Money & shopping
Combine errands: compare distance, time and travel costs
Combine errands: compare distance, time and travel costs. Cash saved (separate − combined); Trip difference (original − planned).
Combine errands: compare distance, time and travel costs. Cash saved (separate − combined); Trip difference (original − planned).
Errand detour on a commute vs a dedicated round trip
Errand detour on a commute vs a dedicated round trip. Annual cash difference (dedicated − detour); Annual minutes difference (dedicated − detour).
Errand detour on a commute vs a dedicated round trip. Annual cash difference (dedicated − detour); Annual minutes difference (dedicated − detour).
Change shopping trip frequency: annual trips, time and costs
Change shopping trip frequency: annual trips, time and costs. Annual cash difference (current − planned); Annual minutes difference (current − planned).
Change shopping trip frequency: annual trips, time and costs. Annual cash difference (current − planned); Annual minutes difference (current − planned).
Delivery vs pickup cost: travel and time comparison
Delivery vs pickup cost: travel and time comparison. Cash difference (delivery − pickup); Time value reference.
Delivery vs pickup cost: travel and time comparison. Cash difference (delivery − pickup); Time value reference.
Extended warranty vs self-funded repair: expected cost calculator
Extended warranty vs self-funded repair: expected cost calculator. Expected difference (warranty − self-funded); Simple break-even failure probability (%).
Extended warranty vs self-funded repair: expected cost calculator. Expected difference (warranty − self-funded); Simple break-even failure probability (%).
Bulk vs regular packs: unit cost including unused quantities
Bulk vs regular packs: unit cost including unused quantities. Regular effective unit cost; Maximum unused percent at break-even.
Bulk vs regular packs: unit cost including unused quantities. Regular effective unit cost; Maximum unused percent at break-even.
Travel laundry vs extra luggage: cost and weight comparison
Travel laundry vs extra luggage: cost and weight comparison: Cash spending difference; Weight assumed avoidable.
Travel laundry vs extra luggage: cost and weight comparison: Cash spending difference; Weight assumed avoidable.
Household consumables annual cost planner
Household consumables annual cost planner. Annual consumables cost; Five-year ownership.
Household consumables annual cost planner. Annual consumables cost; Five-year ownership.
Appliance replacement fund and monthly savings planner
Appliance replacement fund and monthly savings planner. Monthly saving for future dates; Current total gap.
Appliance replacement fund and monthly savings planner. Monthly saving for future dates; Current total gap.
Rent vs buy a short-term household item: total cost
Rent vs buy a short-term household item: total cost. Rental total cost; Purchase cost after expected resale.
Rent vs buy a short-term household item: total cost. Rental total cost; Purchase cost after expected resale.
Is a prepaid visit pass worthwhile before expiry?
Compare pass value before or after purchase using entered prices, visit frequency and expiry.
Compare pass value before or after purchase using entered prices, visit frequency and expiry.
Reusable vs disposable cost and break-even calculator
Compare purchase, cleaning and disposable costs within the entered reusable lifetime.
Compare purchase, cleaning and disposable costs within the entered reusable lifetime.
Refill vs rebuy: yearly household cost comparison
Compare starter bottles, refill packs and leftover volume using your consumption and prices.
Compare starter bottles, refill packs and leftover volume using your consumption and prices.
Rent renewal or moving: break-even calculator
Compare confirmed rent and one-time costs, monthly savings and 1–3-year totals.
Compare confirmed rent and one-time costs, monthly savings and 1–3-year totals.
Cash needed to move and savings planner
Add quoted costs, cash available and a move date to plan the funding gap and savings.
Add quoted costs, cash available and a move date to plan the funding gap and savings.
Moving commute costs and time: annual comparison
Compare annual commute money and time using your one-way minutes and daily costs.
Compare annual commute money and time using your one-way minutes and daily costs.
How much water is wasted waiting for hot water?
Estimate hot-water waiting waste and water/sewer cost from measurements or pipe dimensions.
Estimate hot-water waiting waste and water/sewer cost from measurements or pipe dimensions.
Faucet and shower flow: measure with volume and seconds
Measure flow from collected water and time; optionally estimate usage and cost.
Measure flow from collected water and time; optionally estimate usage and cost.
Drips and leaks: water loss and annual costs
Estimate average leak water and costs from measured volume or your drop size.
Estimate average leak water and costs from measured volume or your drop size.
Air conditioner, dehumidifier and fan electricity costs
Compare daily, monthly and cooling-season electricity costs from power and usage hours.
Compare daily, monthly and cooling-season electricity costs from power and usage hours.
Laundry cost: washing and drying electricity and water
Compare per-cycle, monthly and annual electricity, water, detergent and drying costs.
Compare per-cycle, monthly and annual electricity, water, detergent and drying costs.
Appliance replacement: electricity savings and payback
Compare old and new electricity costs, payback and total costs over 5 and 10 years.
Compare old and new electricity costs, payback and total costs over 5 and 10 years.
Shopping & Effective Price Calculator
Combine unit price, discounts, tax, and points to rank effective cost.
When supermarket or online deals need a fair compare after size, shipping, and rewards.
Discount & Coupon Calculator
Sequential % discounts plus fixed coupons, and reverse from a final price.
When stacked sale percentages and coupons need a quick after-discount amount.
Tax Incl. / Excl. Calculator
Convert exclusive ↔ inclusive amounts. 8% / 10% are display presets only.
When a price is shown without tax and you want the inclusive figure, or the reverse.
Points & Cashback Calculator
Points %, fixed points, cashback, and per-point value into effective cost.
When you want the net cost after points and cashback.
Recurring cost calculator
Convert subscriptions and fixed costs into monthly, annual, and 5-year totals.
When you want one yardstick for several subscriptions or dues.
Multi-country eSIM data and cost
Compare plans using only the stay, data use, and prices you type.
Lay out eSIM offers you already wrote down against a multi-country trip.
Currency Converter
Convert amounts with Frankfurter reference rates. Multi-currency, historical dates, and a history chart.
When you want a quick JPY / USD / EUR reference conversion for travel or shopping estimates.
Discount calculator
Find the sale price and amount off, the percent off, or the original price.
When you want percent off, a sale price, or the original price before the discount.
Tax calculator
Find a tax-inclusive price, a tax-exclusive price, and the tax amount.
When you want tax inclusive or tax exclusive, including a VAT-style rate you choose.
Date & time
How many clothes to pack: travel laundry rotation planner
How many clothes to pack: travel laundry rotation planner: Total pack count; Total items saved.
How many clothes to pack: travel laundry rotation planner: Total pack count; Total items saved.
When to reorder household supplies: dates and safety stock
Calculate reorder thresholds and purchase dates from stock, daily usage, lead time and safety stock.
Calculate reorder thresholds and purchase dates from stock, daily usage, lead time and safety stock.
Which food first? Pantry and freezer use-first planner
Organize food by dates you enter, without estimating safety or shelf life.
Organize food by dates you enter, without estimating safety or shelf life.
Laundry drying time: outdoors and indoors
Estimate household drying time from temperature, humidity, airflow, sunlight and fabric.
Estimate household drying time from temperature, humidity, airflow, sunlight and fabric.
Date, Age & Duration Calculator
Age, date difference, add/subtract, days until, milestones, day of week, and weekday counts — no login.
When you need a quick span, age, deadline, or weekday count.
Age calculator
Completed years, months, and days plus total days and next birthday.
When you want age from a birth date without storing history.
Days until / elapsed
Count days until a target date or how many have elapsed.
When you need days to a deadline or since an event.
Add or subtract dates
Add or subtract days, weeks, months, or years with month-end clamping.
When you need a deadline from a start date plus a duration.
Date difference
Calendar days and year/month/day spans between two dates.
When you need the span between two civil dates.
Schengen 90/180-Day Planner
A helper to check past stays and plan future trips against the rolling 90/180-day short-stay rule.
When you want to organize remaining short-stay days or test a future itinerary.
World Time & Working Hours Planner
Compare major-city clocks, convert local date-times, find common working hours, and shortlist meeting slots using IANA zones.
When remote teams need overlapping work windows or a fair meeting time.
World Holiday & Business Day Planner
Country holiday calendars, business-day estimates, common business days across countries, and leave bridging around weekends and public holidays.
When you need a quick view of public holidays and shared working days across teams or trip planning.
International Business Day Planner
Count, add, or find the next business day shared by two countries using existing weekend and public-holiday data.
When two teams or counterparties need shared working days across borders — not legal advice.
International deadline planner
Uses your working hours and deadline to show shared working time and local civil times.
When you want the overlap before a deadline you enter, using the other party's zone.
Date-line itinerary order
Turns each typed local departure and flight minutes into arrival local time, civil-date change, connection minutes, and UTC order.
When you type every place label, IANA zone, local departure, and flight minutes yourself.
Arrival and lodging dates
Add the travel time to the departure instant and see whether it falls inside the lodging reservation.
When a date line or a time zone may put the arrival on a different day from the booking.
Multi-country leave overlap
Finds dates everyone can be off, and how many fall in a row, from typed workdays, typed leave, and confirmed public holidays.
When people in more than one country want the same dates off.
Clock changes
Lists the hours a chosen city’s clocks skip or repeat in one year.
When a meeting or a flight might land on a local time that does not exist, or that happens twice.
Age calculator
Shows completed age, years, months, and days, and the days until the next birthday.
When you want your age today, or your age on a chosen date.
Days and date calculator
Count the days between two dates, or find the date a number of days before or after a day.
When you want the days between two dates, or a date several days ahead or behind.
Time calculator
Find a time duration, or add and subtract hours and minutes.
When you want the hours between two times, or a time hours later.
Home maintenance
Turn a last date and an interval you enter into the next date, on this device.
When you want a home maintenance schedule or filter replacement reminder from your own interval.
World & stats
World Life Simulator
Compare population, GNI, price-level indicator, OECD wages, life expectancy, and fertility for 2–5 countries using verified public statistics only.
When you want a calm, statistics-only view before talking about relocation or cross-country differences.
Length, weight & temperature
Travel toiletries quantity planner: how much shampoo to pack
Travel toiletries quantity planner: how much shampoo to pack: Quantity with reserve; Containers needed.
Travel toiletries quantity planner: how much shampoo to pack: Quantity with reserve; Containers needed.
What time should I start? Backward time planner
Subtract ordered tasks and a final buffer from a deadline to calculate start and timeline.
Subtract ordered tasks and a final buffer from a deadline to calculate start and timeline.
How much free time? Daily24-hour budget
Subtract fixed commitments and optional plans from24hours to show free, unallocated and excess time.
Subtract fixed commitments and optional plans from24hours to show free, unallocated and excess time.
Weekly routine and household chore time
Compare weekly, daily, monthly and annual activity time with household person-time.
Compare weekly, daily, monthly and annual activity time with household person-time.
How many storage boxes fit? Box placement calculator
Compare aligned box counts with base rotation and stacking using actual dimensions.
Compare aligned box counts with base rotation and stacking using actual dimensions.
How many shelf levels fit? Shelf spacing planner
Calculate shelf levels and equal clear openings from item height, board thickness and reserves.
Calculate shelf levels and equal clear openings from item height, board thickness and reserves.
Storage space utilization and remaining capacity
Sum outer volumes of different items and compare total, usable and remaining storage capacity.
Sum outer volumes of different items and compare total, usable and remaining storage capacity.
Fridge and freezer space left: capacity calculator
Estimate free space, usage and extra containers from capacity and occupied volume.
Estimate free space, usage and extra containers from capacity and occupied volume.
Meal-prep container count and rotation planner
Compare containers, additional purchases and volume for all-at-once storage or reuse.
Compare containers, additional purchases and volume for all-at-once storage or reuse.
How many meals do leftovers cover?
Count whole household meals from leftovers using your own portion planning unit.
Count whole household meals from leftovers using your own portion planning unit.
Unit converter
Converts length, weight, temperature, and volume between units of the same kind.
When you want a fixed-factor check between metric and everyday units.
BMI calculator
Adult BMI from height and weight, with a reference band and a weight span for BMI 18.5–24.9.
When you want BMI and a reference weight from height and weight.
How long will it last
Days left, the run-out date, and a restock date from what you have and what you use per day.
When you want a supply duration for rice, toilet paper, pet food, or diapers.
Percentages
Percentage calculator
Find a percent of a number, what percent one number is of another, percent change, or a number increased or decreased by a percent.
When you want a share, what percent something is, or a percentage increase or decrease.