Bounding box around a coordinate for a radius in km, with an lon,lat bbox string, Web Mercator tile numbers at a zoom level and meters per pixel
CODATA 2022 physical constants with value, uncertainty and units - speed of light, Planck, Boltzmann, G, electron and proton mass, Avogadro and more
Matrix calculator for up to 8x8 - determinant, inverse, rank, trace, transpose and the solution of the linear system Ax = b with a square matrix
Find the real and complex roots of a polynomial up to degree 6, with discriminant and vertex for quadratics and a readable form of the equation
BMI, healthy weight range, BMR, daily calories (TDEE) by activity level, calories to lose or gain, body surface area and ideal weight
FDA drug recalls by drug or firm - recall number, class I to III, status, product, reason, recalling firm, distribution, quantity and dates
FDA medical device recalls by device or firm - recall status, product, reason, root cause, firm, corrective action, product code and posting dates
FDA drug label excerpts by brand or generic name - boxed warning, indications, dosage, contraindications, warnings, adverse reactions and interactions
FDA medical device classification by name - device class I to III, product code, regulation number, specialty, implant and life-sustaining flags
Search the current Code of Federal Regulations - CFR citation, part and section, heading, text excerpt, effective date and link, filterable by title
German river gauge readings from PEGELONLINE - water level in cm, discharge, position by river kilometre and status against mean and flood marks
German pollen forecast by region from DWD - hazel, alder, ash, birch, grasses, rye, mugwort and ragweed levels today, tomorrow and the day after
Search French companies by name, SIREN or SIRET - status, creation date, activity code, size, head office address, establishments and officers
Singapore 2-hour weather forecast by area from NEA with an island summary and the regional PSI and PM2.5 air quality readings with health bands
Marine species sightings from OBIS by scientific name - coordinates, depth, date, country, dataset, basis of record and taxonomic family
Fossil taxon facts from the Paleobiology Database - rank, authority, first and last appearance in millions of years, fossil occurrences and classification
Bedrock geology at a coordinate from Macrostrat - geologic unit, stratigraphic name, lithology, description, age range in Ma and map scale
US volcano alert levels and aviation color codes now from USGS - Normal, Advisory, Watch or Warning with synopsis, region and observatory
Search Figshare research outputs - datasets, code, papers, posters and theses with title, DOI, type, publication date and link, newest first
Eurostat statistics by dataset code and filters - unemployment, GDP, inflation and trade for EU countries as a clean time series with dimension labels
US ground elevation in meters and feet for one or up to ten coordinates from the USGS 3D Elevation Program, with highest and lowest point
ClinVar genetic variants by gene and clinical significance - classification, review status, conditions, chromosome position and variation link
T-test from raw samples - Welch two-sample or one-sample, t, degrees of freedom, p-value, confidence interval, Cohen d and a significance verdict
Chi-square test of independence on a contingency table - statistic, df, p-value, Cramer V, expected counts, Yates correction and assumption warnings
