25+ Tools · 100% Free · No Sign-Up · Updated 2025

All Free Calculators

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.

25+
Free Tools
100%
Free Forever
0
Sign-ups Needed
2025
Updated Data
🆕 New — AP Exam Calculators
🇺🇸
AP Exam · NEW
AP US History Score Calculator New

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.

Calculate APUSH Score →
📊
AP Exam · NEW
AP Statistics Score Calculator New

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.

Calculate AP Stats Score →
🏛
AP Exam · NEW
AP Gov Score Calculator New

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%.

Calculate AP Gov Score →
🏫 AP Exam Score Calculators
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AP Exam
AP Bio Score Calculator

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.

Calculate AP Bio Score →
🌎
AP Exam
APWH Calculator

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.

Calculate APWH Score →
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AP Exam
AP Chem Score Calculator

AP Chemistry — MCQ + 7 individual FRQ sliders (3 long ×10pts + 4 short ×4pts). Composite breakdown, rubric guide, unit weights, 2025 cutoffs, study tips.

Calculate AP Chem Score →
📐 Statistics
📉
Statistics
NormalCDF Calculator

Normal CDF probability with Z-score conversion, bell curve visualization, standard Z-table, TI-84 guide, and worked examples. Used alongside AP Stats calculator.

Calculate normalcdf →
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Marketing
CPM Calculator

Solve for CPM rate, total budget, or total impressions for any advertising campaign. Three calculations in one tool for marketers and media buyers.

Calculate CPM →
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Financial
Annual Income Calculator

Convert hourly, daily, weekly, or monthly wages to annual salary. See gross and net income after taxes and deductions for any pay frequency.

Calculate Annual Income →
🆕 New — Construction Calculators
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Landscaping · NEW
Topsoil Calculator New

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.

Calculate Topsoil →
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Framing · NEW
Stud Calculator New

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.

Calculate Studs →
🧱
Construction
Cinder Block Calculator

Blocks, mortar bags, grout, and total cost for any wall. All CMU sizes, waste factor, mortar type guide, complete building tips, and cost estimator.

Calculate Blocks →
🏗 Construction & Engineering
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Road Construction
Bitumen Calculator

Bitumen tonnes, aggregate weight, and project cost from road dimensions, mix type, and bitumen %. 8 mix types, unit toggles, waste factor, and cost estimator.

Calculate Bitumen →
Engineering
Boiler Feed Pump Calculator

Complete boiler feed pump sizing — GPM, discharge pressure, TDH, NPSH, and brake horsepower. Full engineering guide plus live calculator.

Calculate Pump Sizing →
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Woodworking
Board Foot Calculator

Calculate board feet of lumber from dimensions. Total volume plus cost estimate for any woodworking or construction project. Instant results.

Calculate Board Feet →
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Home & Pool
Pool Salt Calculator

Enter pool size and current salt level for exact pounds and bags needed. Brand selector, gallons/litres toggle, PPM status bar, and drain guide.

Calculate Pool Salt →
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Most Popular
Tip Calculator

Split bills instantly and fairly. Choose tip %, divide by number of people, get exact per-person totals for any restaurant or service bill.

Calculate Tip →
🛒
Seller Tool
eBay Charges Calculator

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.

Calculate eBay Fees →
🚗 Automotive & Sports
🏹
Archery
FOC Calculator

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.

Calculate Arrow FOC →
🔩
Wheel Fitment
Offset Calculator

Wheel offset (ET) and backspacing — see how far your wheel shifts and stance effects when changing ET. Guide by vehicle type, scrub radius effects.

Calculate Wheel Offset →
Trending
Snow Day Calculator

Predict the probability of a school snow day based on snowfall, temperature, wind speed, and local factors. Updated for 2025.

Predict My Snow Day →
🎮 Gaming
🍎
Roblox
Blox Fruits Calculator

Blox Fruits trade calculator — instant W/L/Fair verdict with full 50+ fruit value database, demand bars, and rarity filter. Updated 2025.

Check Trade Value →
Roblox
The Forge Calculator

Roblox The Forge — forging probabilities, multiplier, and active traits from your ore combination. 15 ores, up to 4 types, World 4 updated.

Calculate Forge →
🐴
Uma Musume
Uma Affinity Calculator

Uma Musume compatibility — main + legacies + sub-legacies → circle/double circle rating, affinity score, G1 bonus, and legacy tips.

Calculate Affinity →

All 25+ Free Calculator Tools — Every Category

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.