Estimated blood alcohol concentration from weight, sex, drinks and hours using the Widmark formula, with sobering time and legal limit references

Pregnancy due date by Naegele's rule from last period or conception with cycle adjustment, gestational age today, trimester and key milestone dates

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

BMI, healthy weight range, BMR, daily calories (TDEE) by activity level, calories to lose or gain, body surface area and ideal weight

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

Hedera account lookup - HBAR balance, token balances, EVM address, staking node, pending reward, creation time and network supply from the mirror node

Fossil taxon lookup (Paleobiology Database) - classification, occurrences and geological age range

A/B test significance from visitors and conversions - lift, z-score, p-value, confidence interval, winner and the sample size needed per variant

Electric vehicle range estimate from battery capacity, consumption and reserve - kilometers and miles

Video frame count and frame interval from frame rate and duration

Brazil central bank time series - Selic rate, IPCA and IGP-M inflation, USD/BRL, EUR/BRL, CDI and unemployment from Banco Central SGS

EU public procurement tender search (TED) - title, buyer, CPV codes, publication date and deadline

Average video bitrate calculator from duration and file size - Mbps and kbps

Hong Kong Observatory current temperature, humidity, UV index, district rainfall and warnings with the general situation and a 9-day forecast

Canadian place geocoder from Natural Resources Canada - coordinates and bounding box for cities, towns, features and addresses across all provinces

Running split calculator for even-pace race planning - pace, split time and split count

SaaS unit economics - LTV, LTV:CAC and CAC payback months from ARPA, margin, churn and CAC

Observed tide water level from a NOAA CO-OPS station - latest level in metres and feet, rising or falling trend, and high and low over the window

Screen a name against the UN Security Council consolidated sanctions list - individuals and entities with aliases, reference, listing date and notes