Everyday Utilities & Converters
Free everyday calculators for tips, unit conversions, percentages, age, and more. Instant results in your browser — no app downloads or signups needed.
Most everyday calculations are specific one-question problems — what is 18% of this restaurant bill, how many days until a date, what is this weight in kilograms. These tools are built to answer one question quickly, without the overhead of opening a spreadsheet or doing the arithmetic manually.
What these tools cover
- → Name Generator — Generate unique names for startups, fantasy, or babies.
- → Tip & Split — Calculate tips and split restaurant bills fairly.
- → Unit Converter — Convert between metric and imperial units for length and weight.
- → Age Calculator — Calculate your exact age in years, months, and days.
- → Kitchen Units — Convert volume to weight for perfect baking accuracy.
- → Gas Cost Calc — Calculate fuel costs and split road trip bills with friends.
- → Pet Age Calc — Convert dog and cat years to human years with precision.
- → Tire Size Calculator — Compare two tire sizes and calculate speedometer differences.
- → Words to Pages — Estimate essay and book page counts from word counts.
- → Is What Percent Of — Find what percentage one number is of another.
- → Percent Off Calculator — Calculate sale prices and discount savings instantly.
- → What Is X% of Y — Calculate the exact percentage value of any number.
Name Generator
Generate unique names for startups, fantasy, or babies.
Tip & Split
Calculate tips and split restaurant bills fairly.
Unit Converter
Convert between metric and imperial units for length and weight.
Age Calculator
Calculate your exact age in years, months, and days.
Kitchen Units
Convert volume to weight for perfect baking accuracy.
Gas Cost Calc
Calculate fuel costs and split road trip bills with friends.
Pet Age Calc
Convert dog and cat years to human years with precision.
Tire Size Calculator
Compare two tire sizes and calculate speedometer differences.
Words to Pages
Estimate essay and book page counts from word counts.
Is What Percent Of
Find what percentage one number is of another.
Percent Off Calculator
Calculate sale prices and discount savings instantly.
What Is X% of Y
Calculate the exact percentage value of any number.
How to get accurate results
For tip and bill calculators, verify the pre-tax subtotal from your receipt before entering it — tipping on the tax inflates the amount unnecessarily if that is not your intention. Age and date calculations use your device's current date and time; if your device clock is incorrect, results will be off by the same margin. Gas cost estimates use your manually entered mileage per gallon and fuel price — use your vehicle's real-world consumption, not the EPA estimate, which is typically higher than actual highway or city mileage.
When to use these tools
- → Splitting a restaurant bill with different amounts owed by different people at the table
- → Converting between metric and imperial units when a recipe uses unfamiliar volume or weight measurements
- → Calculating gas costs before a road trip to decide whether driving or flying makes more sense financially
- → Finding your exact age in years, months, and days when filling out a form that requires it
- → Estimating how many pages a manuscript or essay will produce at standard formatting settings
Frequently Asked Questions
What everyday tools are available?
Tip calculator, hours calculator, date calculator, time card calculator, age calculator, unit converter, kitchen unit converter, percentage calculator, and Pomodoro timer.
Do I need to download anything?
No — every tool runs instantly in your browser with no download, no installation, and no account.
Are these tools mobile-friendly?
Yes — every tool is designed mobile-first and works on any smartphone or tablet.
Is there a cost?
All tools are completely free with no subscription, no paywall, and no hidden charges.