Fast, free radiology calculators

Built by a practicing radiologist for the numbers we work out dozens of times a day. No login, no ads, no tracking beyond a plain server log. Paste your measurements, get a result you can drop straight into the report.

Liver Iron Concentration (R2* → LIC)

Convert liver R2* to LIC in mg Fe/g at 1.5 T or 3.0 T, with SAR severity grading. SAR panel and Hernando 2023 calibrations.

Adrenal Nodule

CT absolute and relative washout, plus MRI chemical-shift signal drop and signal intensity index, with adenoma thresholds.

Prostate Volume & PSA Density

Ellipsoid volume from three dimensions, optional PSA density, and a ready-to-paste report sentence.

Gallbladder Polyp Management

Risk category and follow-up recommendation from the 2022 SRU consensus, based on morphology, size and risk factors.

Why another calculator site?

Most online medical calculators are slow, cluttered, or bury the formula. Each radcomplete calculator states the equation and cites its source, shows the interpretation thresholds, and works on a phone at the workstation. Everything here is free and open to any radiologist, resident, technologist or clinician.

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