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Calculator Suite
Fast everyday calculators
Scientific, percentage, BMI, finance, currency, and converter tools in one clean utility.
Currency converter
Daily mid-market reference rates, with a clearly labelled offline estimate if the rate service is unavailable.
Loading current rate… Rate source
Result0
Percentage calculator
Work out a percentage of a value, percentage change, and what share one value is of another.
Results
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BMI calculator
Enter height and weight to estimate BMI and the matching health category.
BMI
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Loan calculator
Estimate monthly repayments, total paid, and interest across a loan term.
Monthly payment
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Tip and split calculator
Calculate the tip, total bill, and cost per person in one pass.
Each person pays
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Distance and size converter
Convert common length units for travel, design, and quick measurements.
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Temperature converter
Move quickly between Celsius, Fahrenheit, and Kelvin.
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Mass converter
Convert kilograms, grams, pounds, ounces, and stone.
Result0
Mortgage calculator
Estimate the amount borrowed, monthly payment, total repaid, and interest.
Monthly payment0
Compound interest calculator
Project a balance using monthly compounding and optional monthly contributions.
Projected balance0
Date difference calculator
Find the exact number of calendar days between two dates.
Difference0 days
Fuel cost calculator
Estimate fuel used and journey cost from distance, efficiency, and price per litre.
Estimated cost0