Everyday Utilities
Unit conversion, construction estimation, age and date maths, ZIP extraction. Practical zero-upload tools for home improvement, planning, and everyday life.
Everyday calculators designed for rapid, friction-free answers without paywalls, email capture, or popups. Calculate chronological age, plan building materials, or size cooling systems instantly.
Age and milestones
Calculate chronological age in years, months, and days, convert human years to canine life stages by breed weight, and verify school age intake cut-offs.
Age in Seconds & Days Calculator
Calculate exact age breakdown in seconds, minutes, hours, and days.
Open the age in seconds & days calculatorAge Calculator & Birthday Count
Get your exact age in years, months, days, down to the second, plus next birthday countdown.
Open the age calculator & birthday countAge Calculator in Months
Calculate your exact age directly in months, weeks, days, hours, and seconds.
Open the age calculator in monthsSchool Age Eligibility Calculator
Determine grade level placement (Pre-K to 12th) based on birth date & cutoff rules.
Open the school age eligibility calculatorDog Age Calculator
Convert dog age to human years accurately based on breed weight and size.
Open the dog age calculatorDates and astrology
Track pregnancy milestones and trimester timelines, or compute Western zodiac signs and astrological positions based on exact birth dates.
World Clock & Time Zone Tracker
Track live current times across global cities and time zones.
Open the world clock & time zone trackerEvent Countdown Timer
Track days, hours, minutes, and seconds until your target event.
Open the event countdown timerPomodoro Focus Timer
Boost productivity with 25-minute focus cycles and break alarms.
Open the pomodoro focus timerArticle Read Time Estimator
Estimate reading times for fast, average, and slow reader speeds.
Open the article read time estimatorPregnancy Due Date Calculator
Calculate estimated due date, gestational age, trimester, and milestones.
Open the pregnancy due date calculatorZodiac Age & Planetary Calculator
Discover your Western Zodiac, Chinese Zodiac, birthstone, and age on other planets.
Open the zodiac age & planetary calculatorCalendar Zodiac Sign Explorer
Explore traditional calendar Sun signs. Astronomical Moon and rising signs are not calculated.
Open the calendar zodiac sign explorerConstruction and home estimation
Calculate flooring boxes, tile counts, wall paint gallons, brick quantities, concrete slabs, mortar mixtures, room square footage, and AC BTU tonnage.
Appliance Power & Electricity Bill Calculator
Calculate daily/monthly kWh power usage and electricity bill costs.
Open the appliance power & electricity bill calculatorRoom Square Footage Calculator
Calculate room area in sq ft, sq meters, and perimeter.
Open the room square footage calculatorLaminate & Hardwood Flooring Calculator
Estimate square feet of hardwood or laminate flooring required.
Open the laminate & hardwood flooring calculatorFloor & Wall Tile Count Calculator
Calculate tile count and grout quantity for bathroom/kitchen floors.
Open the floor & wall tile count calculatorWall Paint Volume Calculator
Estimate paint gallons/liters and coats required for rooms.
Open the wall paint volume calculatorBrick Count & Wall Estimator
Calculate number of bricks needed for walls and masonry work.
Open the brick count & wall estimatorConcrete Volume & Slab Estimator
Calculate cubic yards/meters of concrete for slabs and footings.
Open the concrete volume & slab estimatorCement & Mortar Mix Calculator
Estimate cement bags and sand ratio for masonry construction.
Open the cement & mortar mix calculatorAir Conditioner BTU Cooling Calculator
Determine required AC tonnage and BTU rating for room dimensions.
Open the air conditioner btu cooling calculatorEverything else in this category
Word & Character Counter
Analyze writing structure, character counts, reading times, and keyword densities instantly.
ZIP File Extractor
Open ZIP archives online, preview contents, and extract files locally.
Discount & Sale Price Calculator
Calculate final sale price and monetary savings from percentage discounts.
Other tool categories
Or see every Yuitility tool on one page.
Local-first by design
Every tool on this page runs entirely in your browser. Your files and data never leave your device — no uploads, no server processing, no tracking. Works offline after first load.