Pregnancy due date by Naegele's rule from last period or conception with cycle adjustment, gestational age today, trimester and key milestone dates
Estimated blood alcohol concentration from weight, sex, drinks and hours using the Widmark formula, with sobering time and legal limit references
Estimated maximum heart rate by Tanaka, Fox or Gulati formula and five training zones in beats per minute, with Karvonen reserve zones when resting rate is given
Body fat percentage from tape measurements using the US Navy method with ACE category, healthy range and fat and lean mass when weight is supplied
Calories burned for 30 activities from MET values, body weight and minutes, with net calories above resting and similar-intensity activities
Decode 4, 5 and 6 band resistor colors into ohms, tolerance range and temperature coefficient, or encode an ohm value into the nearest E24 color bands
Solve volts, amps, ohms and watts from any two known values, with milliamps, kilohms and a recommended resistor wattage rating with a 2x margin
Encode a latitude and longitude into a geohash at any precision, or decode a geohash into its centre, bounding box, cell size and eight neighbouring cells
Convert coordinates to an Open Location Code plus code with the short-code hint, or decode a full plus code into its cell centre and size
Convert latitude and longitude to a UTM zone, latitude band, easting and northing with grid reference, or convert UTM coordinates back to WGS84
Look up a drug in the FDA National Drug Code directory - NDC, brand, labeler, dosage form, route, strength, marketing category, class and package sizes
FDA CAERS adverse event reports for foods, supplements and cosmetics by product name - reactions, outcomes, dates and consumer age and sex
FDA veterinary drug adverse event reports by active ingredient - species, breed, age, reactions, outcome, seriousness and drugs involved
EPA ECHO regulated facilities by name, state or ZIP - air, water and waste compliance status, quarters in violation, inspections, actions and penalties
US public water systems by state and name from EPA SDWIS - system ID, type, population served, water source, owner type, wholesaler flag
Search official UK government content on GOV.UK - guidance, services, policy papers and news with title, summary, link, format, date and department
UK Parliament bills with current stage, house, whether it became an Act, defeated or withdrawn flags, last update and link - search by title or list latest
Current NSW Rural Fire Service major incidents - alert level, status, type, council area, size in hectares, agency, location and totals by level
Official Argentina time series from datos.gob.ar by series id - INDEC inflation index, wages, activity and exchange rates with dates and values
Look up medical terms in the NLM MeSH vocabulary - descriptor IDs, preferred label, entry-term synonyms, allowable qualifiers and related headings
Find NCBI GEO gene expression series by topic - accession, title, summary, organism, study type, sample count, platform and linked PubMed IDs
Solar X-ray flares from NOAA GOES for the last 7 days - begin, peak and end time, class from B to X, peak flux, counts per class and the strongest flare
Search Dryad open research datasets by topic - DOI, title, authors, abstract, field of science, publication date, size, license and download page
Bank of Canada Valet series by name - policy overnight rate, USD/CAD and other FX rates and yields with latest value, change and recent observations
