Budgeting and savings calculators for the UK
Plan a budget, and see how regular saving and compound interest grow your money.
- 7 free calculators
- Updated for 2026/27
- Official figures, no sign-up
Calculators
- Savings Interest Interest on savings or a fixed-rate bond, after the Personal Savings Allowance.
- Lifetime ISA What your LISA grows to with the 25% bonus, for a first home or retirement.
- Compound Interest See what regular saving and compound interest add up to over time.
- Inflation What money from any year is worth today, from official price data.
- Budget Split your take-home pay with the 50/30/20 rule, and see where your money goes.
- Savings Goal How much to save each month to reach a goal, or how long it will take.
- Net Worth Add up what you own and what you owe, and see what you’re worth.
Guides
All UK guides- Money basics Banking basics in the UK: current accounts, savings and FSCS How current accounts and savings accounts work in the UK, what to look for, how the FSCS protects your money and how to avoid overdraft costs, in plain English. Read the guide
- Investing Index funds vs picking stocks in the UK: why go passive What an index fund is, why most fund managers fail to beat one, what fees cost you over time, and how to start in a Stocks and Shares ISA or pension. Read the guide
- Money basics Emergency fund in the UK: how much and where to keep it Why an emergency fund comes first, how to work out yours, where to keep it in the UK (easy-access savings, Cash ISAs, Premium Bonds) and how to build it. Read the guide
- Investing Investing basics: ISAs, pensions and index funds How shares, bonds and index funds work, which UK accounts to use first (workplace pension, Lifetime ISA, Stocks and Shares ISA) and how to start small. Read the guide
- Money basics How to make a budget in the UK (the 50/30/20 rule) A simple way to budget in the UK: start from your take-home pay, see where it goes, use the 50/30/20 rule, plan for yearly bills and automate it. Read the guide
- Investing Where to invest: ISA, pension or Lifetime ISA? Which accounts to invest in first in the UK: workplace pension, Stocks and Shares ISA, Lifetime ISA, SIPP or general account, with 2026/27 limits and tax. Read the guide