Online calculators for practical decisions
Plan a trip, compare a purchase, split a bill or work out a date without creating an account. These calculators run in your browser and do not send your entries to us.
Plan before you book or depart
Costs · luggage · connectivity · world time
Travel Budget Calculator
Estimate flights, lodging, food, transport, activities and a contingency buffer.
Calculate trip cost → Driving costRoad Trip Fuel Cost Calculator
Use MPG or L/100km to calculate fuel needed, total cost and each person’s share.
Calculate fuel cost → Mobile dataTravel eSIM Data Calculator
Estimate data for maps, social media, music, calls, video and hotspot use.
Estimate gigabytes → BaggageCarry-On Size Checker
Compare your packed bag with an airline’s current size and weight limits.
Check your bag → PackingCarry-On Packing List Generator
Create a checklist from trip length, climate, travel style and laundry access.
Build a list → World timeTime Zone Converter
Convert a local time between major cities and check destination working hours.
Convert time →Understand the price you will pay
Discounts · value · tips · bill splitting
Discount Calculator
Calculate stacked discounts, savings, quantity, tax and the final total.
Calculate discount → Best valueUnit Price Calculator
Compare two package sizes by weight, volume, item or serving.
Compare products → Restaurant billTip & Split Bill Calculator
Calculate tip, tax, total bill and an even amount per person.
Split the bill →Answer common planning questions
Percentages · intervals · target dates
Estimate everyday running costs
Energy use · appliance comparison
Useful by design
- Inputs stay on your device for these browser-only calculators.
- Changing facts, such as airline baggage limits and local taxes, must be confirmed with the relevant provider.
- No sign-up is required to use the tools listed here.
Common questions
Are these calculators free?
Yes. Every calculator on this page is free to use without creating an account.
Do you store the numbers I enter?
No. These tools calculate in your browser and do not submit the entered values to our server.
Why might a checkout or travel total differ?
Live prices, taxes, fees, exchange rates, airline policies and local rules can change. Use each result as a planning estimate and confirm the final amount with the provider.