Pixel GSD ResolutionCartography & GIS
Convert drone or aerial imagery resolutions to Ground Sample Distance (GSD) print dimensions.
Standard drone sensors have pixel sizes ranging from 2.4um to 6.0um.
Cartographic and geodesic transforms approximate localized ellipsoidal models. Real GIS engines require projection matrices such as NAD83/UTM or local state planes.
Explore Additional Utilities
Ballistic Mils ↔ Angles
Convert between ballistics mils (NATO, Warsaw, Swedish), degrees, and MOA, with range estimation calculators.
Wick size ↔ container diameter — burn pool coverage
Find recommended wick sizes based on container diameter, wax type, and burn pool coverage guidelines.
Drug Concentration Converter
Convert pharmaceutical concentrations between % w/v, mg/mL, and mol/L using substance molecular weight presets.
Paint Coverage Calculator
Estimate the gallons or liters of paint needed based on area and number of coats.
Telescope Magnification Calculator
Calculate telescope magnification, exit pupil, and resolving limit from focal lengths and aperture.
Sound Pressure Level (SPL) Converter
Convert sound pressure from Pascals (Pa) to decibels (dB SPL) and calculate distance attenuation or sound level summing.
Feed conversion ratio — feed weight ↔ fish weight gain
Determine feed efficiency (FCR), specific growth rate, and economic cost per kg of fish biomass gain.
Pump Efficiency Calculator
Calculate pump efficiency and hydraulic power based on volumetric flow rate, head height, fluid density, and input shaft power.
Tablet Splitting & Cost Calculator
Calculate tablet splitting doses, available whole/half combinations, cost savings, and review critical pill splitting safety guidelines.
Recycling Weight & Resource Savings Calculator
Convert quantities of recycled materials (plastic, glass, paper, aluminum) into greenhouse gases, water, and landfill space saved.
Nectar ↔ honey — volume reduction during curing
Calculate volume and weight reduction as bees dehydrate raw floral nectar (80% moisture) down to cured honey (18% moisture).
eGFR Kidney Function Calculator
Calculate Estimated Glomerular Filtration Rate (eGFR) using the modern CKD-EPI (2021) equation to evaluate kidney stages.
Visible light transmittance ↔ tint level
Calculate Visible Light Transmittance (VLT) performance ratios and visual interior glare profiles.
Viscosity Converter
Convert dynamic and kinematic viscosity between centipoise (cP), centistoke (cSt), Saybolt Universal Seconds (SSU), Pa·s, and m²/s.
Draw weight — lbs ↔ kg — bow poundage
Convert between Pounds (lbs) and Kilograms (kg) draw weights. View recommended setups for various target types.
Water Footprint & Virtual Water Calculator
Estimate virtual water consumption based on diet choices, household activities, and direct/indirect product footprints.
Jewel count ↔ movement quality indicator
Explore movement bearing counts from 1 to 30+ jewels. See where rubies are placed and how they reduce mechanical friction.
Notarial Fee & Page Tier Calculator
Calculate official notary fees based on document page counts, copy requirements, travel, and custom tier structures.
Tank turnover rate — volume ↔ pump flow → exchanges per hour
Determine water exchange rate per hour and cycle duration based on tank volume and pump flow rate specifications.
Becquerel ↔ curie (Activity)
Convert between Becquerels (Bq), Curies (Ci), rutherfords, and decay rates to evaluate isotope source strengths and nuclear decay events.