Swimming Pace & Yardage Converter
Convert swim splits and paces between meters and yards, compute target paces for different pool lengths, and generate split sheets.
• Short Course Yards (SCY) are roughly 11.6% shorter than Short Course Meters (SCM).
• A standard 1:15 conversion ratio matches standard USA Swimming age-group alignment frameworks.
Explore Additional Utilities
Planck units ↔ SI units — fundamental physics constants
Translate between SI physical units and the fundamental Planck natural units based on universal constants.
Bra Size Converter
Convert bra band and cup sizes across US, UK, EU, and French sizing standards with precise measurements.
Knitting Gauge Converter
Convert knitting and crochet stitches and rows count between centimeters and inches.
Blanket size — horse length ↔ rug size in inches/cm
Calculate horse blanket (rug) sizing from point of shoulder to center of tail measurements in inches, centimeters, and UK/EU sizes.
Endpaper size — book block dimensions ↔ sheet size
Determine correct paper grain directions and cut layout dimensions of endpapers relative to parent sheet paper sizes.
Visibility — Secchi depth ↔ water clarity rating
Estimate underwater horizontal visibility and water quality indices using standard Secchi disk depth readings.
Pulp consistency — dry fiber % ↔ water ratio
Calculate dry fiber weight percentage in wet pulp slurry and water mixing dilution ratios for vat dipping.
Bait station density — infestation level ↔ stations per hectare
Calculate required rodent bait station density and grid spacing based on infestation severity and area dimensions.
Form size — body measurement ↔ mannikin dimensions
Convert carcass or fresh animal field measurements (A, B, C, D) to standard taxidermy mannikin/form sizes.
Annealing temperature — glass type ↔ strain point ↔ anneal point
Calculate strain point, anneal point, and custom cooling schedules based on glass type and thickness to prevent stress fractures.
Royal jelly production — nurse bee count ↔ grams per day
Calculate potential royal jelly production based on young nurse bee count and queen cell graft rates.
Coordinate converter — WGS84 ↔ local datum
Convert geographic coordinates between global WGS84 (GPS) and local datums, including UTM zone coordinate conversions.
Edition numbering — total prints ↔ AP ↔ PP allocation
Structure printmaking edition runs with proper numbering layouts, Artist Proofs, and Printer Proofs allocations.
Earthquake Magnitude (Richter ↔ Moment)
Convert and compare earthquake energy release, shaking amplitude, and felt effects between Richter (ML) and Moment Magnitude (Mw) scales.
Tank pressure ↔ volume ↔ dive time — SAC rate
Calculate Surface Air Consumption (SAC) rate, gas consumption, and remaining dive time based on cylinder volume and depth.
Twist per inch (TPI) — spinning wheel flyer ratio ↔ speed
Calculate twists per inch (TPI) based on flyer ratio, treadles per minute, and fiber intake rate.
Hide weight — animal size ↔ pickle solution volume
Determine required water volume, salt, and acid amounts for chemical pickling based on raw skin/hide weight.
Jess length ↔ bird leg diameter — equipment fitting
Calculate required jess length, leash scale, and anklet widths based on raptor leg diameter or tarsus metrics.
Diopter ↔ Focal Length Converter
Convert between lens diopters and focal length in meters, millimeters, or inches, and calculate eyeglass lens power requirements.
Rivet size — leather thickness ↔ post length needed
Calculate the correct rivet post length based on your total leather material stack thickness and hardware style.