Everyday Life hub
Age, date, and time tools for daily tasks.
About everyday life conversions
Everyday tools handle the small calculations that come up daily — exact age in years/months/days/hours, date arithmetic for project planning, time-unit conversion for travel and scheduling, and fuel economy translation for international car shopping. Quick to load, easy to share.
All everyday life tools
Every converter and calculator in this hub, ready to launch.
Popular everyday life conversions
The most-searched conversion pairs — one tap straight to the answer.
When you'll reach for these
Practical scenarios where this hub shines.
Planning deadlines
Count business days to launch dates.
Booking travel
Convert hours to days for itineraries.
Car shopping abroad
Compare mpg and L/100km listings.
Key formulas
- L/100km → mpg (US)
mpg = 235.215 / (L/100km)
Common mistakes
Leap years in age math
A naive day-count is off by one every 4 years — our calculator handles it.
Did you know?
mpg and L/100km are reciprocals
Doubling mpg doesn't halve L/100km — the relationship is curved.
Frequently asked
Why is mpg vs L/100km non-linear?
They're reciprocal: one is distance per fuel, the other is fuel per distance. Doubling mpg doesn't halve L/100km — the math curves.
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