World Clock – Live City Times & Meeting Helper
See live local times in cities worldwide, add your own cities and find a fair meeting hour. Free world clock with daylight saving handled…
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Every guide, news story, tool and page on the site, newest first.
Weather Forecast – Free 7-Day Outlook Any City
Check current weather and a 7-day forecast for any city worldwide. Free data from Open-Meteo, no sign-up. For information only — may be…
Sunrise & Sunset Calculator – Daylight Times Worldwide
Find sunrise, sunset, solar noon and day length for any city or coordinates. Computed in your browser from the date and location. Free, no…
Public Holidays by Country – Worldwide Calendar
Browse public holidays for countries worldwide by year. Free data from Nager.Date. For information only — confirm with official government…
Daily Word of the Day & Quiz – Free Vocabulary
Learn a new English word every day and take a short worldwide general-knowledge quiz. Fresh each day, free, no sign-up, all original…
Air Quality Index – Free AQI for Any City
Check air quality (US AQI, PM2.5, PM10) for any city worldwide. Free Open-Meteo data. For information only — not medical advice.
World Events Countdown – Olympics, World Cups & Expos
Live countdowns to major worldwide events: LA 2028 Olympics, FIFA World Cup 2030, Expo 2030 and more. Free, updates every second.
Gold & Silver Price – Gram, 10g & Ounce Worldwide
See gold and silver spot prices per gram, 10 grams and troy ounce in USD, INR, CAD, AED, GBP and EUR. Free reference rates — not trading…
US Income Tax Calculator 2026 – Federal Estimate
Estimate 2026 US federal income tax and take-home pay using IRS brackets and the standard deduction for single, joint, separate and…
UK Income Tax Calculator 2026/27 – Tax & NI Take-Home
Estimate UK income tax and employee National Insurance for 2026/27 (England, Wales & NI). See take-home pay per year, month and week.…
Final Grade Calculator – What Do I Need on My Final?
Find the score you need on your final exam to hit a target course grade. Enter current grade, final weight and goal — free test grade…
Area Calculator – Rectangle, Triangle, Circle, Trapezoid
Calculate area for rectangle, square, triangle, circle, trapezoid and ellipse. Free geometry area calculator with clear formulas.
Fraction Calculator – Add Subtract Multiply Divide
Add, subtract, multiply and divide fractions and mixed numbers. See the simplified result and decimal equivalent — free fraction…
Hours Calculator – Hours Between Times & Timesheet
Calculate hours and minutes between two times, add a duration to a start time, or total a timesheet day. Free work hours calculator.
Unix Timestamp Converter – Epoch to Date & Back
Convert Unix epoch timestamps to human dates and back. Supports seconds and milliseconds, UTC and local time. Free epoch converter.
Ovulation Calculator – Fertile Days & Next Period
Estimate ovulation day and fertile window from your last period date and cycle length. Educational calendar — not medical advice.
Ideal Weight Calculator – Healthy Weight by Height
Estimate ideal body weight from height using Devine, Robinson and Miller formulas for adults. Compare with BMI ranges — educational only.
Simple Interest Calculator – Formula & Total Amount
Calculate simple interest and total amount with I = P × r × t. Free simple interest calculator for loans and short-term savings examples.
Running Pace Calculator – Free Pace, Time & Distance
Free running pace calculator: find pace per km or mile, finish time, or distance from any two inputs. Ideal for 5K, 10K, half and marathon…
Break-Even Calculator – Free Units & Sales Target
Free break-even calculator: find how many units or how much revenue you need to cover fixed and variable costs. Clear contribution margin…
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