56 free calculators 2026 US rates · no signup

Figure Out Your
Next Money Move
Before You Make It

Free calculators for mortgages, debt payoff, retirement, taxes, and more — built for US households, updated for 2026.

56Free calculators
$0Cost, always
0Signups required
2026US data

Investing & Retirement

Model your 401(k), FIRE number, and the hidden cost of fund fees.

12 calculators

Retirement / 401(k)

Calculate your projected retirement balance, monthly income, and whether you are on …

Open calculator →

Compound Interest

See exactly how your savings and investments grow with compound interest. Live growth …

Open calculator →

FIRE Number

Calculate your FIRE number, years to financial independence, and safe withdrawal rate. …

Open calculator →

Investment ROI

Calculate return on investment, annualized CAGR, and net profit for stocks, real estate, …

Open calculator →

Roth Conversion

Calculate whether a Roth IRA conversion makes sense for your situation. See the tax …

Open calculator →

Fund Fee Cost

See exactly how much investment fees (expense ratios, AUM fees) cost you over 10, 20, …

Open calculator →

Net Worth

Calculate your exact net worth by adding all assets and subtracting all debts. Track …

Open calculator →

RMD

Calculate your 2026 Required Minimum Distribution from traditional IRA, 401(k), 403(b), …

Open calculator →

Dividend Income

Calculate dividend income from stocks, ETFs, and REITs. See annual and monthly income, …

Open calculator →

Crypto P&L

Calculate cryptocurrency profit, loss, and capital gains tax. Supports FIFO, LIFO, and …

Open calculator →

DCA Calculator

Calculate how DCA builds your portfolio over time. Compare DCA vs lump sum investing, …

Open calculator →

Stock Average Down

Calculate your new average cost when buying more shares at a lower price. Enter up to 10 …

Open calculator →

Tax & Income

Actual take-home pay, HSA triple tax advantage, and what inflation costs you.

11 calculators

Everyday

Currency, tip splits, BMI, unit conversions, calories, GPA, and more.

12 calculators

Currency Converter

Convert US dollars to euros, British pounds, Canadian dollars, Australian dollars, and …

Open calculator →

Tip & Bill Split

Calculate the right tip amount, split the bill evenly, and round to a clean total. Works …

Open calculator →

Percentage

Calculate any percentage: what is X% of Y, X is what percent of Y, percent change, …

Open calculator →

Hours Worked / Time Card

Calculate total hours worked from clock-in and clock-out times. Add multiple shifts, …

Open calculator →

BMI

Calculate your Body Mass Index (BMI) using height and weight in US customary or metric …

Open calculator →

Daily Calories (TDEE)

Calculate your daily calorie needs for weight loss, maintenance, or muscle gain. Uses …

Open calculator →

Exact Age

Calculate your exact age in years, months, and days from any birth date. Find age on a …

Open calculator →

Unit Converter

Convert between any units: inches to centimeters, pounds to kilograms, Fahrenheit to …

Open calculator →

GPA

Calculate your high school or college GPA on a 4.0 scale. Add courses, credits, and …

Open calculator →

Profit Margin

Calculate gross profit margin, net profit margin, and operating margin. Find your …

Open calculator →

Car Depreciation

Calculate how your car loses value each year and what it will be worth in 1–5 years. See …

Open calculator →

Wedding Budget

Estimate your 2026 wedding budget by guest count, style, and location. Full category …

Open calculator →
Runs in your browserNo server ever sees your numbers.
2026 US dataIRS, SSA, FHFA limits updated annually.
Written by Mark12+ years in personal finance.
No affiliate linksIndependent analysis, nothing sponsored.