Financial independence calculator - FI number from expenses and withdrawal rate, years to reach it, milestones and savings needed to get there in 20 years
Convert latitude and longitude to a Military Grid Reference System string with UTM zone, easting and northing at 1 m to 100 km precision, or MGRS back to coordinates
Airport lookup from OurAirports by ICAO, IATA or local code, by name or city, or the nearest airports to coordinates - type, elevation, scheduled service and links
Newly reported near-Earth asteroid candidates from NASA JPL Scout - NEO score, close-approach distance in lunar distances, magnitude, size class and orbit data
FDA drug shortage database by drug name and status - presentation, dosage form, availability, manufacturer, therapeutic category, NDC and last update
Irish Central Statistics Office tables by code - list a table's dimensions, then pull CPI, prices, population or labour data for chosen values and periods
Statistics Netherlands open data - search the table catalog or pull the latest rows of a table such as CPI, with column titles, units and period codes
Expand an iCalendar recurrence rule into dates - daily, weekly, monthly and yearly with INTERVAL, BYDAY (like last Friday), BYMONTHDAY, COUNT and UNTIL
Compare two loan offers - payment, total interest, upfront fees, cheaper loan over the full term, break-even month and cost over your holding period
Turn a phrase like next Friday at 3pm, in 3 weeks or end of next month into an ISO date and time relative to a base, with weekday and ambiguity notes
Estimate the LLM token count of text with a low to high range, a breakdown by words, numbers, symbols and CJK, and whether it fits a given context window
Split text into sentence, paragraph or fixed-size chunks for RAG with optional overlap, character offsets and a rough token estimate per chunk
Find the nearest active NOAA weather stations to a coordinate - GHCN station ID, name, distance, record start and latest data date, ready for history queries
Historical daily or monthly weather for a NOAA station - high, low and mean temperature, rain, snow, wettest day, hottest day and heating and cooling degree days
Molar mass of a chemical formula with brackets and hydrates - g/mol, Hill formula, atom counts, mass percent per element and moles from a sample in grams
Chemical element facts by symbol, name or atomic number - weight, group, electron configuration, electronegativity, melting and boiling point, density
Accurate WGS-84 distance and bearings between two coordinates with Vincenty, or the destination point from a start, bearing and distance
Balance a chemical equation with the smallest whole-number coefficients, with an atom-by-atom check and the mass balance for reactants and products
Pilot reports near an airport - turbulence and icing intensity, flight level, aircraft type, cloud, wind and temperature, with counts of significant reports
Active US SIGMETs, AIRMETs and graphical AIRMETs by hazard or covering a point - turbulence, icing, convective, IFR, mountain obscuration, with altitudes
Search NASA Earth science datasets in the CMR - title, short name, version, data center, platforms, time range, spatial extent and landing page
Look up legal entities in the GLEIF LEI index by company name or LEI - status, jurisdiction, legal form, addresses, registration and renewal dates
Bank Negara Malaysia ringgit exchange rates - interbank buying, selling and middle rates per currency with the unit, session and date
Bayes calculator for a diagnostic test - positive and negative predictive value, likelihood ratios and a confusion matrix from prevalence, sensitivity and specificity
