By the NumbersBy the Numbers: Ofgem Price Cap £1,641/year — Rebuild the Bill From Unit Rates and Standing ChargesOfgem’s April–June 2026 cap headline is £1,641/year for a typical household. We show how unit rates, standing charges, and kWh usage combine to form a bill.Calcul8 blog
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Plain-English articles on money, homes, cars, small business, and useful maths. Each post explains the idea, shows where people trip up, and links to a calculator when you are ready to try your own numbers.
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By the Numbers: UK Inflation (April 2026) — What 2.8% CPI Can Mean in Pounds
ONS reports CPI up 2.8% in the year to April 2026. We translate the percentage into pounds for simple household budget examples.Latest articles
Browse calculatorsBy the NumbersBy the Numbers: Ofgem Price Cap £1,641/year — Rebuild the Bill From Unit Rates and Standing ChargesOfgem’s April–June 2026 cap headline is £1,641/year for a typical household. We show how unit rates, standing charges, and kWh usage combine to form a bill.
By the NumbersBy the Numbers: Ofgem's Next Price Cap Update (27 May 2026) — What a 10% Change Would MeanOfgem will publish the next default tariff price cap by 27 May 2026. We model simple +10% and -10% bill scenarios and show how to run your own usage-based estimate.
By the NumbersBy the Numbers: What $4.50 Gas Means for Your Driving CostsEIA data puts regular gasoline at $4.500 per gallon. We run simple commute and annual-driving examples to translate per-gallon prices into a practical weekly and yearly spend.
Savings habitsHow to Calculate Compound InterestA plain-English guide to how money grows when interest earns interest, with a worked example and a companion calculator for your own savings plan.
Home buyingHow to Calculate Mortgage RepaymentsA homeowner-friendly walkthrough of monthly mortgage repayments, why rates and terms matter, and how to test scenarios before you speak to a lender.
Mortgage choicesMortgage Overpayment vs Offset MortgageA practical comparison of two ways to reduce mortgage interest: paying extra into the loan or linking savings through an offset account.
Debt planningHow to Pay Off Credit Card Debt FasterA realistic look at credit card payoff timelines, minimum payments, and why a fixed extra payment can change the cost of debt.Everyday mathsHow to Calculate Percentage IncreaseA simple guide to percentage increase, from bills and prices to business metrics, with the baseline mistake explained clearly.
Shopping mathsHow to Calculate a DiscountA shopper-friendly guide to sale prices, percentage-off offers, stacked discounts, and the difference between savings and final price.Browse by topic
By the Numbers
- By the Numbers: UK Inflation (April 2026) — What 2.8% CPI Can Mean in Pounds
- By the Numbers: Ofgem Price Cap £1,641/year — Rebuild the Bill From Unit Rates and Standing Charges
- By the Numbers: Ofgem's Next Price Cap Update (27 May 2026) — What a 10% Change Would Mean
- By the Numbers: What $4.50 Gas Means for Your Driving Costs
- By the Numbers: How Long a $3,000 Credit Card Balance Can Take to Clear