How to use this investments & savings hub
Investment and savings calculators matter because long-term decisions are usually shaped by a few variables that compound quietly: contribution size, growth rate, time horizon, and tax wrapper. This hub gives you a way to test those assumptions before you commit money, making it easier to compare steady saving with investing, or short-term goals with retirement planning.
A strong workflow here is to start with your target outcome, then work backwards. If you need a future pot size, compare different contribution levels. If you want to judge whether a return assumption is realistic, run cautious and optimistic cases side by side. The value of these tools is not just the headline total; it is seeing how quickly the result changes when you alter one driver at a time.
These calculators are also useful for avoiding common planning errors. Many people anchor on a single annual return or a single monthly contribution and never test the downside. Others compare products without standardising the same time period or fee assumptions. Grouping the tools by planning job helps you move through the questions in a more reliable order, from simple savings growth to portfolio returns and retirement planning.
If you are choosing between cash savings, long-term investing, or tax-efficient wrappers, start with the featured tools and then use the guides to add context. The goal is not to predict markets perfectly; it is to make better decisions with clearer assumptions, better comparisons, and a repeatable process you can revisit as your plan changes.
Most popular calculators
Start with the tools people usually need first, then move into the grouped sections below for more specific scenarios.
Compound Interest Calculator
Calculate how compound interest grows savings or increases debt over time. Enter principal, rate, compounding frequency and term to project your final balance.
Investment Return Calculator
Calculate simple investment profit, total return, and annualised return from a starting value, ending value, and holding period.
Savings Growth Calculator
Retirement Savings Calculator
Guides that support this category
Use these editorial guides when you need more context before choosing the right calculator.
Investment Calculator vs Compound Interest Calculator: Key Differences
Compare investment return and compound interest calculations to choose the right tool for your needs.
8 min read
Simple Interest vs Compound Interest: Understanding the Difference
Explore how simple and compound interest work, their differences, and when each applies.
9 min read
Savings Calculator vs Investment Calculator: Growing Your Money Wisely
Discover when to use savings vs investment calculators to grow your wealth effectively.
8 min read
Best Investment & Savings Calculators in the UK
Plan your UK investments with compound interest, ROI, and retirement savings calculators.
11 min read
Savings growth and compounding
Best for cash savings, regular contributions, and understanding how time and rate assumptions change the outcome.
Compound Interest Calculator
Calculate how compound interest grows savings or increases debt over time. Enter principal, rate, compounding frequency and term to project your final balance.
Savings Growth Calculator
Calculate how your savings grow over time with regular contributions and compound interest. Project your future balance to plan for any savings goal.
Savings Calculator
Calculate how your savings will grow with regular deposits and compound interest. Enter your balance, monthly contribution and rate to project future savings.
Future Value Calculator
Calculate the future value of an investment or savings plan with compound interest. Enter the principal, rate, compounding frequency and time to project growth.
Investing and return analysis
Use these tools to compare returns, dividend income, present versus future value, and portfolio-style scenarios.
Investment Return Calculator
Calculate simple investment profit, total return, and annualised return from a starting value, ending value, and holding period.
Dividend Yield Calculator
Calculate the dividend yield of a stock by dividing the annual dividend by the share price. Assess income potential before investing in dividend-paying shares.
Present Value Calculator
Calculate the present value of a future cash flow discounted at a given interest rate. Understand what a future sum or annuity stream is worth in today's money.
Index Fund Calculator
Project index fund investment growth with lump sum and regular contributions. See long-term compound returns.
Future Value Calculator
Calculate the future value of an investment or savings plan with compound interest. Enter the principal, rate, compounding frequency and time to project growth.
Retirement and tax wrappers
These calculators help when you want to compare ISA, SIPP, annuity, and retirement savings choices over longer horizons.
Retirement Savings Calculator
Calculate how much you will have at retirement based on your savings and contributions.
ISA Calculator
Project UK ISA growth from a starting balance, monthly contributions, return, and term. Compare contributions, growth, and any allowance excess.
SIPP Calculator
Calculate SIPP pension pot growth with tax relief. Project your retirement fund from annual contributions.
Annuity Calculator
Calculate annuity payments, present value and future value for fixed income streams. Estimate how much regular income your pension or investment will generate.
More tools in this category
Use these supporting calculators when you need a more specific comparison or a second opinion on the same decision.
State Pension Calculator
Illustrate the 2026/27 full new State Pension rate using qualifying years. Your GOV.UK forecast, not this tool, confirms your entitlement.
Pension Drawdown Stress Tester
Stress-test how long a pension drawdown pot may last after tax-free cash, inflation-linked withdrawals, investment charges and an early market fall.