Textile & Fashion Suite
Streamline garment fitting, calculate pattern adjustments, and translate fabric weights and hardware standards used across global apparel manufacturing.
Bra Size Converter & Calculator
Determine your ideal fit using your underbust and bust measurements, and instantly convert between US, UK, EU, and French sizing standards.
Measure snug against the ribcage, directly beneath the bust.
Measure loosely around the fullest part of the chest.
How the Fit is Calculated
Band sizes are derived from the snug underbust measure. In traditional US/UK styling, even underbusts gain +4 inches and odd values gain +5 inches. The Cup depth is calculated directly from the structural discrepancy between the calculated band size and full bust circumference.
Underbust band span is 30.0 in. Bust variance is +4.0 inches, mapping to standard volume indexes.
Explore Additional Utilities
Exposure Triangle & F-Stop
Calculate absolute stop adjustments, exposure reciprocal tradeoffs, f-stop quotients, and ISO noise tradeoffs.
SNR ↔ bit error rate — signal quality assessment
Analyze theoretical Bit Error Rate (BER) curves against Signal-to-Noise Ratio (SNR) for BPSK, QPSK, and QAM constellations.
Solar heat gain coefficient ↔ shading factor
Convert Solar Heat Gain Coefficient (SHGC) to Shading Coefficient (SC) for solar radiation control.
Water cement ratio ↔ compressive strength
Estimate 28-day concrete compressive strength from the water-cement (W/C) ratio using Abrams' Law, or solve for desired strengths.
Render thickness ↔ coverage per bag
Determine dry render mix weight and bag counts for a target wall area and application thickness. Assess single bag yields.
Beam divergence — mrad ↔ degrees ↔ spot size at distance
Calculate equivalent divergence angles and spot diameter at target plane from exit waist apertures.
Latency ↔ distance — speed of light in fiber
Calculate propagation delay and round-trip time (RTT) for signals traversing fiber optic, copper, air, or vacuum.
Sign language handshape ↔ letter — fingerspelling reference
Deconstruct English words into ASL (American Sign Language) fingerspelling frames with custom thumb and palm configurations.
pH Acid/Base Index
Evaluate hydrogen ion concentrations and check acidic or alkaline levels using pH logarithmic scales.
Speech Rate (WPM ↔ Pages)
Calculate presentation speech times, audio length, and page count equivalents using custom words per minute (WPM).
Dew point ↔ condensation risk — wall insulation check
Check wall surface dew point parameters and assess condensation and mold growth risks from room relative humidity.
Displacement tonnage ↔ cubic meters — ship buoyancy
Convert ship displacement tonnage to submerged volume (m³) and buoyancy force. Choose between freshwater and saltwater standards.
Cable loss — frequency + length → signal attenuation
Estimate transmission line losses and remaining signal power for standard coaxial cables and optical fiber spans.
Concrete strength — MPa ↔ psi ↔ N/mm²
Convert concrete compressive strength between MPa, psi, and N/mm². View typical application guidelines and concrete classes.
Carnot efficiency — hot ↔ cold temperature → max efficiency
Calculate the maximum theoretical thermal efficiency (Carnot Limit) of heat engines based on reservoir temperatures.
R-value ↔ U-value — insulation thermal resistance
Convert between R-value thermal resistance and U-value heat transmittance with preset materials lookup.
Premium Rate ↔ Sum Insured
Calculate basic insurance premium rates, loading factors, and sum insured relationships (percentage, permille, and absolute values).
Numerical aperture ↔ acceptance angle — fiber coupling
Determine light coupling capabilities, supported modes, V-numbers, and acceptance cone widths for optical optical fibers.
GPS Format Converter
Convert global latitude and longitude between Decimal Degrees (DD) and Degrees Minutes Seconds (DMS).
Julian ↔ Gregorian Calendar
Convert between Julian Dates (JD, MJD) and standard Gregorian calendar dates with day of the year and century metrics.