Free calculators and everyday tools for money, home, DIY, garden, travel and writing. Everything runs in your browser – nothing you type is sent anywhere.
Numerology NEW
Numerology: your numbers and their meanings
Create two personal number readings, compare them, see the 3×3 grid and read in-depth interpretations. Explore 977 sourced famous-person profiles and a detailed encyclopedia of historical numerical traditions.
More than hours plus materials. Calculate job quantities, labour, waste, delivery, contingency and profit margin for fencing, patios, hedges, turf, gravel and painting.
Free beta. Prices are editable assumptions, not live supplier quotes.
Percentage
Percentage calculator
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UK VAT
VAT calculator
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Volume
Volume calculator
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Money
Loan & mortgage repayments
Monthly repayment and total interest for a repayment loan or mortgage.
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Estimate for a standard repayment loan with a fixed rate. Your lender’s figures may differ; this is not financial advice.
Money
Savings goal planner
How long it takes to reach a savings target with regular deposits.
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Assumes interest is added monthly at a steady rate.
Money
Compound interest
What regular saving could grow to over time.
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Illustration only: rates change and tax is not included.
Work
Hourly ↔ yearly pay
Convert an hourly rate into weekly, monthly and yearly gross pay, or the other way round.
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Gross pay before tax, National Insurance and pension.
Everyday
Bill splitter
Split a bill fairly, with an optional tip.
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Shopping
Which is better value?
Compare the price per unit of two products or pack sizes.
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Home
Appliance running cost
What an appliance costs to run per day, month and year.
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Enter the unit rate from your own energy bill. Power is usually on the rating plate or in the manual.
DIY
Paint calculator
How much paint you need for walls or a ceiling.
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Check the coverage figure on your paint tin – it varies by product and surface.
DIY
Flooring & tiles
Area to buy for a room, including extra for cuts and waste.
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Travel
Journey fuel cost
Fuel cost for a trip, using your car’s miles per gallon.
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Uses UK (imperial) gallons: 1 gallon = 4.546 litres.
Everyday
Unit converter
Quick conversions between metric and imperial units.
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Everyday
Days between dates
Calendar days and Monday–Friday working days between two dates.
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Working days count Monday to Friday and do not remove bank holidays.
Security
Password generator
Strong random passwords, created on your device and never sent anywhere.
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Writing
Word & character counter
Count words, characters and estimated reading time.
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Money
Credit card payoff time
How long it takes to clear a card balance with a fixed monthly payment, and the interest you pay.
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Assumes no new spending and a steady rate. Check your statement for the real rate and any promotional periods.
Money
Mortgage overpayment savings
See how much interest and time a regular monthly overpayment could save.
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Estimate for a repayment mortgage at a fixed rate. Many lenders limit overpayments and may charge an early repayment charge above the limit – check with your lender first.
Earn
Freelance hourly rate
Work out the hourly rate you need to charge to reach a target income after business costs.
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Billable hours are the hours clients pay for – admin, travel and quoting are not billable. Check your own tax position on GOV.UK; the set-aside figure is only what you choose to put aside.
Selling
Profit, margin & markup
Profit after platform fees and postage, with margin and markup – or the price you need for a target margin.
Result
Margin = profit ÷ selling price. Markup = profit ÷ cost. Fee percentages are applied to the selling price – check your platform’s current fees.
Percentage
Percentage change
Percentage increase or decrease between two figures – for pay rises, price rises and bills.
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Money
50/30/20 budget split
Split your monthly take-home pay into needs, wants and savings using the 50/30/20 rule of thumb.
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A starting point, not a rule – adjust the percentages to fit your rent and bills.
Money
Subscriptions total
List your subscriptions to see what they cost a month and a year.
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Tip: cancel the ones you have not used in the last month.
Home
Wallpaper rolls
Rolls of wallpaper needed for a room, allowing for the pattern repeat.
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Standard UK rolls are about 10.05 m × 0.53 m – check the label. Buy all rolls from the same batch number.
DIY
Bricks & blocks for a wall
Number of bricks or blocks for a wall, with an allowance for cuts and breakages.
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Based on standard UK sizes with 10 mm joints: about 60 bricks or 10 blocks per m² per skin. Walls over about 1 m, retaining walls and anything structural need proper design – ask a builder or building control.
Garden
Gravel, sand, soil & concrete
Volume and approximate weight of gravel, sand, topsoil or concrete for an area, plus 25 kg bags.
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Densities are typical figures – they vary with moisture and grade, so ask your merchant to confirm. Sub-base compacts, so order around 10–20% extra.
Garden
Fence panels & posts
Panels, posts, gravel boards and post-fix bags for a straight run of fence.
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Standard UK panels are about 1.83 m (6 ft) wide. Allow one extra post for each corner or gate. Check boundaries and height rules before you build.
Garden
Lawn turf & grass seed
Turf rolls or grass seed needed for a new lawn.
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Most turf rolls are about 1 m². Seed rates for a new lawn are usually 35–50 g per m² – follow the rate on your seed packet.
Travel
Time zone converter
Convert a date and time from one place to another, with daylight saving taken into account.
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Uses the time zone rules built into your browser.
Dates
Add or subtract days
Find the date a number of days, weeks, months or working days from a start date.
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Working days skip Saturdays and Sundays but not bank holidays – check those on GOV.UK for deadlines.
Kitchen
Recipe scaler
Scale a recipe up or down – paste the ingredients and choose the new number of servings.
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Cooking and baking times may change with the quantity – check food is cooked through.
Running
Running pace
Pace per km and per mile, and average speed, from a distance and time.
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Everyday
Random picker & team maker
Pick a name at random or split a list into fair random teams.
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Uses your browser’s secure random numbers. Nothing is sent anywhere.
Writing
Text case & clean-up
Change text to UPPER, lower, Title or Sentence case, or tidy spaces and line breaks.