LittleCalcs

Schengen 90/180 Calculator

Track your Schengen days, see exactly how many remain, and plan your next stay. Trips saved locally, never uploaded.

Cloth vs Disposable Diaper Cost Calculator

Compare the true cost of cloth and disposable diapers — break-even month, laundry included, second-child savings.

Wedding Vendor Tip Calculator

Itemized tips for every vendor with customary rates, a grand total, and a printable cash-envelope checklist.

Golf Membership Break-Even Calculator

Membership or pay-per-round? See your break-even rounds per year and what your playing frequency really costs.

Pay Off Loan or Invest Calculator

Extra money each month: attack the loan or invest it? Side-by-side simulation with net worth, interest, and payoff dates.

Protein Per Dollar Calculator

Compare your actual grocery items by protein per dollar — unit conversions handled, best value ranked first.

Board Game Cost Per Play

Track your collection's cost per play and per player-hour, and see which games have truly earned their keep.

Car Seat Expiration Checker

Typical lifespan by brand from the manufacture date on the sticker — and when to check the seat itself.

Gym Cost Per Visit Calculator

What each workout actually costs you — annual fees and joining fee included, at your real attendance.

Meal Kit vs Groceries Cost Calculator

What meal kits really cost against your own groceries — waste, shipping, and an honest annual delta.

Espresso Machine Payback Calculator

When does a home espresso setup pay for itself vs café drinks? Payback months and 5-year savings.

Movers vs U-Haul Cost Calculator

A neutral side-by-side of full-service movers and the DIY truck — honest ranges, no lead-gen agenda.

Ski Season Pass Break-Even Calculator

Season pass or day tickets? Your break-even day count and cost per ski day, before the price deadlines.

Passport 6-Month Rule Checker

Does your passport meet your destination's validity rule? 37 destinations, margins to the day.

School Lunch vs Packed Lunch Calculator

Per-kid and household costs for buying vs packing school lunch — judgment-free, gear and all.

Chest Freezer Payback Calculator

Does a chest freezer pay for itself? Running cost vs bulk-buying savings, payback months, 5-year net.

Storage Unit Worth-It Calculator

Cumulative rent vs what your stored stuff is worth — and the month the math flips. Clarity, not judgment.

Open Bar vs Cash Bar Calculator

Hosted, limited, or cash bar: estimated drinks, host cost per scenario, and per-guest math for your reception.

Rent vs Buy Power Tools Calculator

Break-even uses, resale factored in, consumables included — rent it again or just buy the thing?

Recipe Cost Per Serving Calculator

Price any recipe by ingredient with real unit conversion — cost per serving, biggest-cost items first, recipes saved locally.

3D Print Cost Calculator

Filament, power, wear, and failure rate — the true cost per print, plus an honest what-to-charge floor.

Real vs Artificial Christmas Tree Cost

Which tree is cheaper over the years you'll actually keep it? Break-even year and cumulative costs.

Thanksgiving Cooking Timeline

Pick your dishes and serve time — get a reverse-scheduled plan with USDA thaw dates and oven-conflict warnings.

Holiday Tipping Calculator

Who to tip and how much, with customary ranges, a budget splitter, and the USPS/teacher gift rules built in.

Firewood for Winter Calculator

How many cords your home actually needs this season — honest ranges, species and stove efficiency included.

Heating Oil Days-Remaining Calculator

Tank gauge to days remaining and a conservative reorder date — never cut it close in January.

Wedding Sparkler Send-Off Calculator

How many sparklers, what length, and how many packs — with the safety notes your venue will thank you for.

Free Invoice Generator — No Signup, No Watermark

Build and print a clean invoice entirely in your browser. No account, no watermark, nothing uploaded.

Seed Starting Schedule Calculator

Enter your last frost date, pick your crops — get indoor-start, transplant, and direct-sow dates on one timeline.

Pet Insurance vs Savings Calculator

A genuinely neutral comparison — including what happens when the big vet bill comes before your savings are ready.

Dishwasher vs Hand Washing Cost

Cost per load for your machine against your actual washing style — honest ranges, water heating included.

Smoke Detector Expiration Checker

Find the date code on your brand, get replace-by dates, and print a whole-home replacement schedule.

Bike Helmet Replacement Checker

Age, crashes, storage, and visible wear — a structured answer to whether your helmet is due.

Wood Burner vs Gas Central Heating (UK)

Pence per kWh of heat from logs vs your gas boiler — the neutral comparison no stove seller will give you.

Kayak Rental vs Buying Calculator

Break-even outings, gear and storage included — keep renting or get your own boat?

Bounce House Rent vs Buy Calculator

Break-even parties, residential vs commercial-grade truth, and whether a cheap unit survives to pay off.

Stock Tank Heater Cost Calculator

What keeping livestock water thawed really costs — duty-cycle estimates by climate, not just rated watts.

Move It or Buy New? Furniture Calculator

Per-item moving cost vs replacing at the other end — the neutral answer no mover or retailer will give you.

Car Battery Date Code Decoder

Read your battery's cryptic date stamp by brand, see its age, and know when winter will find it out.

Propane Tank Recertification Calculator

Decode the collar stamp — manufacture date, "E," or "S" — and get the real next-due date per DOT rules.