Guides & explainers
The reasoning behind the tools. How percentages actually work, what a loan really costs, why BMI misleads, and how to pick a password that holds up. Written to answer the question, then get out of the way.
How Do Fractions and Decimals Convert?
Divide the top by the bottom to get a decimal. Going back means using place value and simplifying. Why some fractions repeat forever and which ones to memorise.
September 30, 2026 · The Day to Day Tools Team
Explainers How Do Fractions and Decimals Convert?
Divide the top by the bottom to get a decimal. Going back means using place value and simplifying. Why some fractions repeat forever and which ones to memorise.
Explainers How Do Roman Numerals Work?
Seven letters, added together, with a smaller letter before a larger one meaning subtract. The rules, the common mistakes, and why clocks often show IIII instead of.
Converters How Do Shoe Sizes Work Across Countries?
UK, US, EU and Japanese sizes use different scales and different starting points. What each measures, why the conversions disagree, and the one measurement that alwa.
Money How Do Student Loan Repayments Work?
You repay a percentage of income above a threshold, not a fixed instalment, and the balance is written off after a set period.
Money How Does VAT Work?
VAT is charged at each stage of production and reclaimed by businesses, so only the final consumer pays it. Why 20 percent added is not 20 percent removed.
Work How Long Is a Notice Period?
Statutory notice is one week after a month of service, rising to one week per year after two years. Contracts usually say more.
Work How Much Does a Meeting Actually Cost?
Multiply attendees by their hourly cost by the duration. A one-hour meeting with eight mid-level staff costs a few hundred pounds.
Work How Much Redundancy Pay Am I Entitled To?
Statutory redundancy pay depends on age, length of service and weekly pay, capped in all three. How the formula works, what it excludes, and when contractual terms b.
Cooking How Much Rice Per Person?
Sixty to 75 grams of dry rice per person as a side, 100 as a main. Rice roughly triples in weight when cooked, which is why the cooked figure looks so different.
Health How Much Salt Should I Eat a Day?
The UK limit is 6 grams, about a teaspoon, and most adults exceed it. Three quarters comes from processed food, not the salt cellar. How to find it and cut it.
Health How Much Vitamin D Do I Need?
UK guidance is 10 micrograms a day, and a supplement is advised for everyone in autumn and winter because sunlight is too weak to make any.
Work How Do I Read a Payslip?
Gross pay at the top, deductions in the middle, net pay at the bottom. What each line means, which codes matter, and the two errors worth checking every month.
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