For AI assistants
Free finance calculators for your AI chat
Ask a money question in your AI assistant. Get the math and a chart you can change. You don't need an account.
Works in
Claude
How to add it
In Claude, open Settings, then Connectors. Add a custom connector with this address:
https://tools.amaltash.com/mcp
You don't need to sign in.
Compound interest calculator
Compound interest calculator
What does $10,000 grow to at 5% in 10 years? Show a chart.
Future value calculator
What is the future value of $10,000 at 6% in 15 years?
Daily compound interest calculator
Compare daily and monthly compounding on $10,000 at 5%.
APY calculator
What is the APY of 5% compounded daily?
Monthly compound interest
What does $200 a month become at 6% in 20 years?
Compound interest chart
Chart $1,000 at 8% over 30 years.
With monthly contributions
Start with $5,000, add $100 a month, at 7%, for 15 years.
Investment calculator
Investment calculator
What could $500 a month grow to in 30 years?
Investment growth calculator
Show growth from $10,000 plus $200 a month for 20 years.
Index fund calculator
What could $300 a month in an index fund become at the long-run average?
Monthly investment calculator
What could $100 a month become in 10 years?
Simple investment calculator
What is $10 a day worth after 20 years?
With inflation
What could $500 a month be worth in today's dollars?
Retirement calculator
Retirement calculator
Can I retire at 60 with $800,000 and spend $4,000 a month?
How long will my savings last
How long will $500,000 last if I spend $3,000 a month?
Money in retirement
Will my money last to age 90?
Retirement withdrawal calculator
How much can I take out each month from $1,000,000?
Retirement income calculator
What monthly income could $600,000 support?
Simple retirement calculator
I am 40 with $100,000 and save $500 a month. Can I retire at 65?
The 4 percent rule
Test the 4% rule on $1,000,000 over 30 years.
Can I retire at 55
Can I retire at 55 with $1,000,000?
CD and high-yield savings calculator
CD calculator
What will $5,000 earn in a 1-year CD at 4%?
CD rate calculator
Compare a 6-month and a 12-month CD at 4%.
High-yield savings calculator
What does $20,000 earn in a savings account at 4%?
HYSA calculator
What does $300 a month become at 4% in 5 years?
CD interest calculator
How much interest does $10,000 earn in a 2-year CD at 3%?
Savings calculator
Save $200 a month at 3% for 10 years. Show a chart.
Net worth calculator
Net worth calculator
My assets are $300,000 and my debts are $100,000. What is my net worth?
Average net worth by age
How does a net worth of $200,000 compare at age 40?
Net worth by age
What is the typical net worth at age 50?
What is my net worth
Help me add up my net worth.
S&P 500 and index fund calculator
S&P 500 calculator
What would $1,000 in the S&P 500 have become from 2000 to 2025?
VOO calculator
What would $200 a month in VOO have become over 10 years?
S&P 500 investment calculator
What would $100 a month in the S&P 500 have become since 1990?
S&P 500 return calculator
Show S&P 500 growth from 1980 to 2020 after inflation.
VOO investment calculator
What would $5,000 in VOO have become over 5 years?
QQQ investment calculator
What would $100 a month in QQQ have become over 10 years?
Stock return calculator
Stock return calculator
What would $1,000 in Costco have become over 5 years?
Stock investment calculator
What would $500 a month in Microsoft have become?
If I invested
If I had invested $1,000 in Apple 10 years ago, what would I have?
Nvidia stock calculator
What would $100 a month in Nvidia have become over 3 years?
SCHD investment calculator
What would $300 a month in SCHD have become over 10 years?
Apple stock calculator
What would $1,000 in Apple have become over 5 years?
DCA calculator
DCA calculator
DCA $200 a month into VOO for 5 years, with a chart.
Dollar-cost averaging calculator
Show dollar-cost averaging into a US stock over 5 years.
Dollar-cost averaging vs lump sum
Compare $12,000 at once with $1,000 a month.
DCA chart
Chart my DCA into the S&P 500 fund VOO.
DCA stock calculator
DCA $100 a week into Costco for 3 years.
Apple DCA calculator
DCA $200 a month into Apple for 5 years.
Loss, crash and position size calculators
Position size calculator
What is 5% of a $100,000 account?
Drawdown calculator
If I lose 30%, what gain gets me back to even?
Percentage loss calculator
How big a gain undoes a 50% loss?
Sequence of returns calculator
How does the order of returns change my balance?
Stock market crash calculator
What would a 30% stock drop do to my $100,000 portfolio?
T-bill ladder calculator
T-bill ladder
Build a 4-rung T-bill ladder with $40,000.
Treasury ladder
How do I split $20,000 across 13-week bills?
T-bill ladder calculator
Lay out a ladder of 26-week bills with $50,000.
How the numbers work
Each result lists its method and assumptions. Past stock results use real monthly prices. They include splits and dividends. Plans for the future use a rate you pick or a long-run average. Those are hypothetical. Your results will vary.
What it can't do
It can't see your accounts. It can't trade or move money. It doesn't give advice on what to buy.
Your data
We use what you enter only to work out your answer. See our privacy policy.
Risk disclosure
Investing involves risk, including the possible loss of principal. Past performance does not guarantee future results and there can be no assurance that investment objectives will be achieved. The value of investments may fluctuate, and investors may not get back the amount originally invested. Algorithmic and rules-based trading strategies carry unique risks, including technology failures, model errors, and market volatility. Diversification does not ensure a profit or protect against loss.
Read the full Risk Disclaimer.