Every calculator on Tip Calculater in one place — AP exam scores, construction materials, eBay selling fees, wheel offsets, archery FOC, gaming, statistics, and everyday finance. All free, all instant, all updated for 2025.
APUSH calculator — MCQ + 3 SAQ sliders + DBQ + LEQ. Composite out of 130, full 7-pt DBQ rubric, 9 unit weights, 2025 pass rate 72%, college credit guide, 10 study tips.
AP Stats calculator — MCQ + all 6 FRQ sliders. ⚠ High cutoff: a 5 requires ~90%. Composite out of 100, 2025 pass rate 60.3%, FRQ communication guide, formula sheet.
AP US Government — MCQ + all 4 FRQ types (3+4+4+6 pts). Composite out of 120. 15 SCOTUS cases table, Argument Essay rubric, 9 foundational docs, 2025 pass rate 71.7%.
MCQ + all 6 FRQ sliders. Composite out of 120, 2025 cutoffs, full FRQ rubric guide, 8 unit weights, college credit guide, and 10 study tips for a 4 or 5.
AP World History — MCQ, SAQ, DBQ, LEQ. Composite out of 150, full 7-point DBQ rubric, 6-point LEQ rubric, 9 unit weights, 2025 distribution, study tips.
AP Chemistry — MCQ + 7 individual FRQ sliders (3 long ×10pts + 4 short ×4pts). Composite breakdown, rubric guide, unit weights, 2025 cutoffs, study tips.
Normal CDF probability with Z-score conversion, bell curve visualization, standard Z-table, TI-84 guide, and worked examples. Used alongside AP Stats calculator.
Solve for CPM rate, total budget, or total impressions for any advertising campaign. Three calculations in one tool for marketers and media buyers.
Convert hourly, daily, weekly, or monthly wages to annual salary. See gross and net income after taxes and deductions for any pay frequency.
Cubic yards, bags, tons, and cost for any area. Rectangular & circular shapes, settling factor, bag size selector, depth guide for 8 project types, soil type comparison, raised bed mix ratios.
Wall framing — field studs, plates, corner studs, door & window openings, waste factor, lumber cost. 16″ vs 24″ OC comparison table, 2×4 vs 2×6 guide, building code notes.
Blocks, mortar bags, grout, and total cost for any wall. All CMU sizes, waste factor, mortar type guide, complete building tips, and cost estimator.
Bitumen tonnes, aggregate weight, and project cost from road dimensions, mix type, and bitumen %. 8 mix types, unit toggles, waste factor, and cost estimator.
Complete boiler feed pump sizing — GPM, discharge pressure, TDH, NPSH, and brake horsepower. Full engineering guide plus live calculator.
Calculate board feet of lumber from dimensions. Total volume plus cost estimate for any woodworking or construction project. Instant results.
Enter pool size and current salt level for exact pounds and bags needed. Brand selector, gallons/litres toggle, PPM status bar, and drain guide.
Split bills instantly and fairly. Choose tip %, divide by number of people, get exact per-person totals for any restaurant or service bill.
Exact eBay final value fees, managed payments, net profit, and margin. Tiered FVF for 10 categories, store vs non-store, TRS 10% discount, live profit/loss warning.
Arrow front of center (FOC%) from 12 component weights using the AMO formula. Ideal FOC ranges by shooting style, visual scale bar, and tuning tips.
Wheel offset (ET) and backspacing — see how far your wheel shifts and stance effects when changing ET. Guide by vehicle type, scrub radius effects.
Predict the probability of a school snow day based on snowfall, temperature, wind speed, and local factors. Updated for 2025.
Blox Fruits trade calculator — instant W/L/Fair verdict with full 50+ fruit value database, demand bars, and rarity filter. Updated 2025.
Roblox The Forge — forging probabilities, multiplier, and active traits from your ore combination. 15 ores, up to 4 types, World 4 updated.
Uma Musume compatibility — main + legacies + sub-legacies → circle/double circle rating, affinity score, G1 bonus, and legacy tips.
Every tool on this page is 100% free — no registration, no sign-up, no payment, no expiry, forever. Our calculators cover AP exam scoring (AP US History, AP Statistics, AP Gov, AP Bio, APWH, AP Chem), construction and landscaping (topsoil, wall studs, cinder blocks, bitumen), automotive (wheel offset), archery (arrow FOC), business and selling (eBay fees, CPM), statistics (normalCDF), gaming (Blox Fruits, The Forge, Uma Musume), and everyday finance (tip splitting, annual income). All updated for 2025. New calculators added regularly.