What do you need to calculate?
A curated collection of specialized tools. One problem. One tool. Done.
Indicative rates · US Dollar to Euro
Highly useful tools
$96.23
Find the hourly rate you actually need to live the life you want.
Freelancer Rate Calculator
$3,650
Turn hours and rate into a quote you can send today.
Project Quote Calculator
$4,250
See what a project actually puts in your pocket.
Project Profit Calculator
$980
Know whether your next job is actually worth taking.
Job Profit Calculator
25 units
Find the point where the work starts paying you.
Break-Even Calculator
$100.00
Price a product from cost and the margin you want to keep.
Pricing Calculator
What do you need help with?
You do not need the name of a tool. You need the right tool. Pick what you are trying to do.
Going somewhere? Buying abroad? Getting paid internationally?
Convert currencies with live rates, then see what international money really costs.
Math tools that show their working.
Percentages, fractions, algebra, geometry and more — calculate, check your own answers, or practice. Built for students, teachers and parents.
Tools that work together
Real problems need more than one tool. TREETL connects them into a path.
Start a freelance project
From the rate you need to the quote you send to the profit you keep.
Get your money sorted
Budget, save, kill debt and stop the slow leaks.
Categories
Business
Price better. Understand your numbers. Plan ahead.
ExploreWork
Charge what you are worth. Compare offers. See your time.
ExploreMoney
Keep more. Spend smarter. Get out of debt.
ExploreHome and Family
Plan a renovation. Move without surprises.
ExploreTravel and Life
Plan a trip. Split it fairly. See the real cost.
ExploreEducation
Know your grade. Hit your target.
ExploreCurrency & International Money
Convert, compare and see what international money really costs.
ExploreClassroom Math
Math, without the guesswork.
ExploreTap, get a result
Deterministic math. No waiting on an AI to think. Just a clear answer you can act on.
Specialized, not generic
Built for real situations like cleaning businesses, wedding photographers and first apartments.
It remembers you
Save tools to your toolbox and keep your numbers for next time, no signup required.
Your Personal toolbox.
TREETL is a marketplace of beautifully simple, purpose-built tools that help people get things done.
From business tools that help a salon owner price services or a café calculate margins, to personal utilities for travel, money and everyday decisions, and free classroom tools that help students calculate, check, understand and practice maths, TREETL turns common tasks into fast, focused experiences.
Each tool is designed to do one thing exceptionally well, with trusted calculations and clear guidance, creating a growing ecosystem of small useful tools that people can discover, use and return to whenever they need them.
TREETL is great when you just want the right tool. Build a personal collection that gets more useful the longer you use it.