Your Net WorthUK & US calculators
Your net worth, without the noise.
A free net worth tracker and personal-finance calculators for UK and US savers. No sign-up, no ads, no dark patterns. Just live numbers and a clear chart.
Overview
Net worth
£512,400
+8.2% this year
Assets
£641,200
Investments + cash
Liabilities
£128,800
Mortgage balance
Allocation
Equities 68%
Property 22%
Cash 10%
Net worth trend
Last 8 months
The tools
Free UK & US personal finance calculators.
Every calculator runs live in your browser: no sign-up, nothing sent to a server. Pick one, move any input, and the chart recalculates instantly.
Net Worth Tracker
Free net worth tracker with no sign-up. Your data stays in your browser. Add accounts and see your net worth in under a minute, with a Freedom Framework mode and a 4% withdrawal estimate.
Compound Interest Calculator
Free compound interest calculator for the US. See how starting amount, monthly contributions, annual rate and time interact. Solve for any variable and switch between monthly, daily and annual compounding.
Mortgage Overpayment
Free US mortgage payoff calculator with extra payments. See how much interest you save by paying off your mortgage early, model escrow, and compare early payoff to investing.
Debt Payoff Calculator
Free debt snowball vs avalanche calculator. Add your debts, set a monthly budget, and see side-by-side debt-free dates and total interest for both methods.
Multi-Currency Budget
Add income and spending in different currencies and convert to one base.
Emergency Fund Calculator
Free emergency fund calculator for the US. Work out how much cash you need, how long it will take to build, and track your progress towards a fully funded safety net.
Showcase
Net worth, deconstructed.
Assets minus liabilities, tracked over time. A few minutes to set up, a minute a month to maintain. The chart shows the trend, the gap, and the monthly delta.
Net worth trend
Assets, liabilities, and net worth over time
Jun
£494k
Jul
£509k
Aug
£518k
Built for speed
Static prerendering, zero runtime dependencies, and CSS-only motion. The page loads fast and the chart recalculates instantly.
Built for privacy
Your inputs never leave your browser. No account, no database, no server-side storage of your financial numbers.
Trusted by people who hate noise.
"Finally a calculator that does not ask for my email before showing a number."
M. Thompson
UK saver
"The Wedge of Death is brutal but useful. It stopped me over-optimising for age 110."
R. Patel
FIRE planner
"The only site where I trust the methodology more than the marketing."
S. Kowalski
Financial planner
Then find your FIRE number.
Once you know where you stand, see the portfolio size you would need to cover your annual spending, plus the probability that it lasts through the years ahead.