Yeast Equivalents Calculator
Calibrate biological yeast weights and convert between fresh, active dry, and instant yeasts.
A single package of dry yeast in the US/Europe typically holds 7 grams (approx. 2.25 teaspoons).
Explore Additional Utilities
Lumens & Bulb Wattage Equivalence
Compare light outputs in lumens with electrical consumption in bulb watts.
pH adjustment — acid/alkali drops ↔ pH change estimate
Estimate acidifying or alkalizing solution amounts to safely adjust formulation pH values.
Saddle fit — tree width ↔ horse back angle & measurement
Determine tree width (Narrow, Medium, Wide, Extra Wide) from wither angle measurements and back curvature.
Animal Feed & Dry Matter Calculator
Convert animal body weight percentage dry matter intake (DMI) to daily feed requirements in kg/lbs, based on feed dry matter ratio and species presets.
Servo angle ↔ PWM pulse width
Convert between servo rotation angle in degrees and standard PWM pulse width in microseconds, with continuous rotation presets.
Karat purity (Karat ↔ Fineness ↔ % gold)
Convert gold purity levels between Karat values, parts-per-thousand millesimal fineness, and pure gold percentage.
True wind ↔ apparent wind
Calculate apparent wind speed and angle from true wind speed, sailing angle, and boat speed (or vice versa).
Vibration Converter (d ↔ v ↔ a)
Convert sinusoidal mechanical vibration parameters between displacement, velocity, and acceleration at a given frequency.
Soil Bearing Capacity Converter
Convert soil bearing capacities between Kilopascals (kPa), Tons per Square Foot (tsf), Pounds per Square Foot (psf), and kg/cm² with typical soil range guides.
Crease pattern scale — diagram size ↔ actual paper needed
Scale geometric origami crease patterns and tessellations to starting square sheet sizes.
Prism Power Converter
Convert ophthalmic prism power between prism diopters (PD) and degrees of deviation, with light bending estimations.
Camber angle — mm of offset ↔ degrees
Convert alignment offset deflection in millimeters to degrees of camber angle based on rim diameter, or vice versa.
Weld throat thickness ↔ leg length — fillet weld geometry
Convert between throat thickness and leg length for fillet welds. Estimate joint volume, weld weight, and shear load capacity.
Electron volts ↔ joules ↔ nanometers — photon energy
Convert between photon energy (eV, Joules) and physical wavelengths (nm, pm) or frequency (THz).
Certificate validity — days ↔ expiry date calculation
Convert between certificate lifetime in days, months, or years, and calculate exact UTC expiration times with leap year support.
Cabochon dome height ↔ base diameter ratio
Calculate cabochon dome proportions, bezel edge thickness, and curvature radii based on base shapes.
Morse code ↔ NATO phonetic — dual encoding
Convert raw text into international Morse Code (DITs and DAHs) and official NATO spelling phonetics synchronously.
Tablet Splitting & Cost Calculator
Calculate tablet splitting doses, available whole/half combinations, cost savings, and review critical pill splitting safety guidelines.
Arrow spine ↔ draw weight + length — stiffness matching
Estimate required arrow static spine rating (stiffness) based on bow draw weight, arrow length, and bow type.
Heel angle ↔ righting moment
Calculate heel angle, righting arm (GZ), righting moment, and sailboat stability from displacement, vertical center of gravity, and wind force.