A little clarity.
For every number.
Less figuring it out. More getting on with it.
Useful calculators that make the numbers make sense.
MAKE SENSE.
What do these
numbers have in common?
The biggest factor they both share.
Good with numbers.
Even better with answers.
Start with the essentials.
Pick a tool and take the guesswork out.
HCF Calculator
Find the largest factor your numbers share, with the working shown.
Open calculatorLCM Calculator
Find the smallest shared multiple of two or more numbers.
Open calculatorRoman Converter
From numbers to Roman numerals. And back again.
Open calculatorA first date.
A few thousand little moments.
How long have you been together? Count the days, find your next anniversary and give an ordinary day a little reason to celebrate.
Explore Date & Time →Dating Time Calculator
Your days together, your next anniversary, and a just-for-fun milestone.
Open calculatorA monthly payment.
And the whole picture.
HELOC Loan Calculator
Plan a constant-balance HELOC draw period and a separate repayment phase.
Open calculator
Auto Loan Refinance Calculator
Compare what remains on an auto loan with a new rate, term and fee treatment.
Open calculator
Yacht Loan Calculator
Estimate a monthly yacht-loan payment from your price, cash contribution and financing assumptions.
Open calculatorIllustrative loan estimates, not current rates, approval or personal financial advice. Compare fees and total remaining cost as well as payments.
An answer.
And the why.
Useful for a quick check.
Helpful when you want to understand.
Bring your numbers
Choose a calculator and enter what you know. No account, no extra steps.
Get a clear answer
See your result with straightforward working, not just a number on a screen.
Make it make sense
Explore examples and explanations. Take the answer—and the understanding—with you.
Numbers can be complicated.
Your calculator shouldn’t be.