Tools that make the next decision obvious.

Monthly payment, total interest, and payoff time.

Monthly payment and payoff on a home loan.

Break-even months, PI savings, and lifetime interest — refi or stay.

Price from income, debts, down payment, and rate.

Compare renting to owning over your time horizon.

Estimate take-home pay after tax.

Project retirement savings with employer match and growth.

After-tax contributions grown tax-free — with 2026 IRA limits.

Same paycheck cost vs same dollars in — which leaves more after tax.

Growth with deposits and compounding.

Extra payments vs interest.

Return and annualized return.

See which fasting phase you’re in from hours fasted. Install it on your phone.

Tabata, EMOM, and custom rounds. Big screen, beeps, one tap.

Daily calories to maintain, lose, or gain.

Targets from your stats and goal.

Protein, carbs, and fat targets.

Daily protein grams from body weight and goal.

Body Mass Index from height and weight.

Shares or contracts from risk and stop.

Dollar P&L from points and contracts.

NQ/ES/YM/RTY/CL/GC notional, tick value, day vs overnight margin vs account size.

Shares, buy/sell, commission → cost, proceeds, profit, and ROI.

R-multiple and breakeven win rate.

Add rooms, get total area, flooring with waste, and paint gallons.

Concrete, gravel, mulch, or fill from length, width, and depth, plus 80-lb bags.

Driveway area and thickness into tons of hot mix at 145 lb/ft³.

Split the bill and calculate tips.

X% of Y, reverse percent, discounts, and profit-share splits — instant math.

Simple, fast arithmetic calculator.