As someone who travels frequently, I've developed some travel math calculations that make trip planning much easier. For distance calculation tricks, I use the 60:1 rule for driving - every 60 miles takes about 1 hour at highway speeds.
For currency conversions, I round to easy numbers and then adjust. Like if the exchange rate is 1.2, I just add 20% mentally.
What travel math calculations or distance calculation tricks do you use when planning trips or navigating?
The 60:1 rule for driving is a great travel math calculation! I teach something similar: at 60 mph, you travel 1 mile per minute. So 180 miles is about 3 hours. For distance calculation tricks, I also use the 10% rule" for fuel: if you're going 300 miles and your car gets 30 mpg, you need 10 gallons. Add 10% for safety, so 11 gallons.
When road tripping, I use travel math calculations for food budgeting. If we're driving 8 hours and stopping every 2 hours, that's 3 stops. About $15 per stop for snacks/drinks, so $45 total. These estimation techniques help me plan my grocery shopping before the trip too.
For international travel, I use distance calculation tricks with time zones. If I'm flying from New York to London (5 hour time difference), and my flight leaves at 8 PM, I'll arrive at 8 AM London time (8 PM + 7 hour flight + 5 hour time change = 8 AM). These travel math calculations help with jet lag planning.
My favorite travel math calculation is for currency. If something costs 50 euros and exchange rate is 1.1, I just add 10%: $55. For quick distance calculation tricks while walking in cities, I use the 20 minute mile" rule. So if something is 1 mile away, that's about 20 minutes walking. Really helps with planning day trips.