Time Converter Guide: Hours, Minutes & Seconds Into Clear Plans
Time conversion sounds simple, but in real life it quickly becomes messy. One client in New York sends you a timesheet in decimal hours, a colleague in London tracks everything in hours and minutes, and your workout app talks in seconds. This free time converter is designed to remove that stress and give you clean answers in seconds.
Type a value, pick your "From" unit and choose a "To" unit. The calculator instantly shows the converted result and the exact formula. It's perfect for translating a 37.5-hour work week into minutes for payroll, checking how many hours there are in a 10-day study plan, or seeing how long a two-week vacation really is.
• 1 minute = 60 seconds
• 1 hour = 60 minutes = 3,600 seconds
• 1 day = 24 hours = 1,440 minutes = 86,400 seconds
• 1 week = 7 days = 168 hours
• 1 month ≈ 30 days (for planning)
• 1 year = 365 days = 52 weeks (approx.)
Real situations where a time converter helps
Work & payroll. Many US and UK companies pay in decimal hours. If you worked 7 hours 30 minutes, use the time converter to see that this is 7.5 hours. Combine it with the loan calculator when you're planning repayments based on your monthly income.
Study & revision. Students can convert weekly study goals into daily bite-sized sessions. For example, a 15-hour exam plan turns into five 3-hour sessions or ten 90-minute blocks. Use the percentage calculator to track how much of the syllabus you've finished.
Travel & time off. Planning a road trip or long-haul flight? Convert days to hours so you know exactly how much time you'll spend in transit. The date calculator counts days between two dates while this page turns those days into hours or minutes.
• 90 minutes = 1.5 hours = 5,400 seconds
• 2 hours 45 minutes = 2.75 decimal hours
• 5 days of work = 40 hours = 2,400 minutes
• 2 weeks of holiday = 14 days = 336 hours
• 30-minute workout = 0.5 hours = 1,800 seconds
Avoid the most common time-conversion mistakes
The biggest mistake people make is mixing hours and minutes with decimal hours. For example, 2.5 hours is 2 hours 30 minutes — not 2 hours 50 minutes. The converter shows both the result and the formula, so you can copy it into spreadsheets or payroll software and stay accurate.
Another trap is forgetting that months and years are approximate. A planning month is treated as 30 days and a year as 365 days — accurate enough for budgeting and project schedules, but if you need exact date-to-date differences, pair this with the age calculator or date calculator.
Who this time converter is for
This calculator is built for anyone who works with time: freelancers logging billable hours, office workers filling out timesheets, project managers planning sprints, teachers preparing lessons, students planning revision blocks, travellers planning flights, or fitness fans timing workouts. It's free, fast and works on desktop, tablet and mobile.
Time Converter FAQ
How do I convert hours to minutes manually?
Multiply the number of hours by 60. For example, 2.5 hours × 60 = 150 minutes. The calculator does this instantly and also shows the formula under the result.
Can I use this for US and UK payroll timesheets?
Yes. Enter your start time in hours and minutes and convert to hours to see the decimal value most US, UK and Canadian employers require, such as 7.25 or 7.5 hours.
Does the calculator support days, weeks, months and years?
It does. You can start from any of these units and convert to another one, so turning two weeks into hours or three months into days only takes a single click.
Is there a limit on how many conversions I can do?
No. You can convert as many times as you like. The history panel keeps your most recent results and you can export them to TXT or CSV for reporting.
Will this time converter work on my phone?
Yes. The page is fully responsive and works well on iPhone, Android and tablets while you are at work, at home or travelling.
What other calculators should I use with this?
Most visitors also use the BMI calculator for health, the loan calculator for finances and the percentage calculator for quick percent changes.