Geotechnical Calculator: Bearing Capacity, Walls, Slopes

Realtor Mortgage Calculator

realtorscraper/realtor-mortgage-calculator

Calculates mortgage payments and loan details for multiple locations with various loan types. It includes detailed payment breakdowns, amortization schedules, total interest, and affordability metrics. Supports loan types like 30-year fixed, FHA, VA, and ARM for informed home financing decisions.

US & Canada Salary Calculator - State & Provincial Net Pay

trovevault/us-ca-salary-calculator

Calculate your net take-home pay in the United States or Canada. Includes federal income tax, state/provincial tax for all 50 US states and all Canadian provinces, FICA (Social Security & Medicare), CPP/QPP, EI/QPIP, and self-employment tax. Based on 2026 IRS and CRA rates.

Remove vocals from songs or extract them with Meta's Demucs AI. Get a clean instrumental (karaoke) track and an a cappella vocal track, or split music into vocals, drums, bass and other instruments. MP3, WAV, FLAC or M4A out, from audio or video files.

Body Metrics Calculator

mangudai/body-metrics-calculator

Calculate BMI, BMR, TDEE, body fat, ideal weight, healthy weight range and daily calorie and macro targets from height, weight, age, sex and activity. Offline, no API key. Metric or imperial, one or many people, one clean row of results per person.

Calculate the engagement rate of any list of Instagram creators: likes, comments, shares and saves per reel against followers, plus average views, view rate, tier benchmark and a rating. No login, no API key. Export CSV, JSON or Excel.

Schengen 90/180 & Residence Day Calculator API

fetchgrove/stay-limit-calculator

Count days for the Schengen 90/180 rule, UK settlement and Statutory Residence Test, US substantial presence and 330-day tests, and Canadian citizenship and PR. Get days used, days left, the first breach date and whether a planned trip fits. Every rule cites its official source.

Rolling bearing life calculator from plain text: equivalent load with X, Y, e, L10 and modified life with a1 and aISO (oil viscosity, contamination), static safety, duty cycles, and the dynamic rating a target life needs.

Helical spring calculator from plain text: rate, stress, safety factors, solid and free length, buckling, surge and fatigue for compression, extension and torsion springs, and compression spring design from loads and space.

ASCE 7-16 design loads from plain text: wind pressures on walls and roofs and base shear by the directional procedure, roof snow loads with unbalanced loads and drifts at steps and parapets, and LRFD and ASD load combinations.

Fillet weld group calculator from plain text: throat area, centroid and J of weld patterns, direct, torsional and bending throat stress under eccentric and out-of-plane loads, AISC weld and base metal safety, and the smallest leg size that works.