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.
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 your investment grows with compound interest over time.
Savings Growth Calculator
Project your savings with regular monthly contributions and compound interest.
Savings Calculator
Savings Calculator helps you estimate the main outcome for South Africa using Initial Deposit (£), Monthly Contribution (£), and Annual Interest Rate (%). Use it to compare scenarios before making a final decision.
Simple Interest Calculator
Simple Interest Calculator helps you estimate the main outcome for South Africa using Principal (£), Annual Interest Rate (%), and Time (Years). Use it to compare scenarios before making a final decision.
Future Value Calculator
Future Value Calculator helps you estimate the main outcome for South Africa using Present Value (£), Annual Interest Rate (%), and Years. Use it to compare scenarios before making a final decision.
Investing and return analysis
Use these tools to compare returns, dividend income, present versus future value, and portfolio-style scenarios.
Investment Return Calculator
Calculate total and annualised return on any investment.
Dividend Yield Calculator
Calculate the dividend yield and annual income from your stock holdings.
Present Value Calculator
Present Value Calculator helps you estimate the main outcome for South Africa using Future Value (£), Annual Discount Rate (%), and Years. Use it to compare scenarios before making a final decision.
Index Fund Calculator
Project index fund investment growth with lump sum and regular contributions. See long-term compound returns.
Future Value Calculator
Future Value Calculator helps you estimate the main outcome for South Africa using Present Value (£), Annual Interest Rate (%), and Years. Use it to compare scenarios before making a final decision.
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
Calculate how much your ISA could be worth. See projected growth, total contributions, and estimated tax savings vs a taxable account.
SIPP Calculator
Calculate SIPP pension pot growth with tax relief. Project your retirement fund from annual contributions.
Annuity Calculator
Annuity Calculator helps you estimate the main outcome for South Africa using Regular Payment (£), Annual Interest Rate (%), and Years. Use it to compare scenarios before making a final decision.
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
Calculate your estimated UK State Pension based on your National Insurance record. Find out how many qualifying years you have and what you'll receive at retirement.
Pension Drawdown Calculator
Calculate how long your pension drawdown will last in retirement. Model your pot size, annual withdrawals, and investment growth to plan your retirement income.
401(k) Calculator
Calculate how much your 401(k) will grow by retirement. Enter your contribution, employer match, and expected return to project your nest egg and monthly retirement income.
Roth IRA Calculator
Calculate how your Roth IRA will grow by retirement. See your projected tax-free balance, total contributions, and the equivalent pre-tax value compared to a Traditional IRA.
Net Worth Calculator
Calculate your net worth by entering your assets and liabilities. See your total wealth, liquid assets, and debt-to-asset ratio in seconds.
FIRE Calculator
Calculate your FIRE number and how many years until you can retire early. Enter your expenses, savings rate, and expected investment return to find your path to financial independence.
529 College Savings Calculator
Calculate how much your 529 college savings plan will grow. Enter monthly contributions, investment return, and college cost inflation to see your projected balance and funding gap.
HSA Calculator (Health Savings Account)
Calculate your HSA tax savings and projected balance. See how much the triple tax advantage saves you annually and how your balance grows over time with investment returns.
Superannuation Calculator
Calculate how much super you'll have at retirement. Enter your salary, SGC rate, and salary sacrifice contributions to project your super balance with 2024/25 rates.
Franking Credits Calculator
Calculate the franking credit on your Australian dividends, your grossed-up income, and whether you’ll receive a tax refund or owe additional tax based on your marginal rate.
Superannuation Drawdown Calculator
Calculate how long your superannuation will last in retirement. Enter your super balance, annual withdrawal, and investment return to see when your balance runs out.
Irish Pension Calculator
Calculate your Irish pension contributions, Revenue age-based limits, and tax relief at 20% or 40%. Project your pension pot at retirement using 2024 Revenue rules.
KiwiSaver Calculator
Calculate how much your KiwiSaver will grow by retirement. Includes employer 3% contributions and the government Member Tax Credit of up to $521 per year.
NZ Superannuation Calculator
Calculate your New Zealand Superannuation (NZ Super) and total retirement income. See 2024/25 NZ Super rates by living situation plus your projected KiwiSaver balance.
Retirement Annuity Calculator (South Africa)
Calculate your South African Retirement Annuity (RA) tax deduction and projected balance. SARS allows 27.5% of income up to R350,000 per year as a tax deduction.
Dividend Tax Calculator (South Africa)
Calculate South African dividend withholding tax (DWT) at 20% for resident individuals and non-residents. SA companies are exempt. See your net dividend after withholding tax.