Free blood test calculators

Evidence-based calculators that show the formula and how the result varies for you. Computed in your browser — nothing is sent anywhere. For your full panel at once, analyze your whole report instead.

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Kidney function eGFR Calculator (CKD-EPI 2021) Estimate kidney function from creatinine, age and sex using the 2021 race-free CKD-EPI equation, with a toggle for the Japanese (JSN) equation and your CKD stage explained. Calculator Open tool Cholesterol LDL Cholesterol Calculator Estimate LDL from total cholesterol, HDL and triglycerides using the Friedewald and Sampson (NIH) equations, in mg/dL or mmol/L, with how optimal targets vary by guideline. Calculator Open tool Vitamins & deficiency Vitamin D Level Calculator Enter your 25(OH)D result in ng/mL or nmol/L and see whether it's deficient, insufficient or sufficient, using the Endocrine Society's guideline thresholds. Calculator Open tool Iron & blood health Ferritin Level Calculator (Sex-Adjusted) Enter your ferritin result and sex and see whether it's low, optimal or high — ferritin's optimal ceiling differs between women and men. Calculator Open tool Metabolic & blood sugar A1C Calculator (HbA1c to eAG) Convert A1C to estimated average glucose and back, in mg/dL or mmol/L, using the ADAG study formula, with your result classified against ADA diagnostic thresholds. Calculator Open tool Metabolic & blood sugar HOMA-IR Calculator (Insulin Resistance) Enter fasting glucose and fasting insulin from the same draw to get your HOMA-IR insulin resistance score (Matthews 1985), in US or SI units, with pmol/L insulin converted. Calculator Open tool Metabolic & blood sugar Corrected Calcium Calculator Adjust total calcium for low albumin with the Payne formula, in US or SI units, and see where the corrected value falls. Calculator Open tool Metabolic & blood sugar TyG Index Calculator (Insulin Resistance) Fasting triglycerides and glucose give the triglyceride-glucose index, a research marker of insulin resistance, in US or SI units. Calculator Open tool Heart & cholesterol Cholesterol Ratio Calculator Get your chol/HDL ratio, non-HDL cholesterol and TG/HDL ratio from one lipid panel, in mg/dL or mmol/L. The TG/HDL ratio is judged on the mg/dL basis its cut-off was set in. Calculator Open tool Longevity & aging Biological Age Calculator (PhenoAge) Enter your age and nine routine blood values (albumin, creatinine, glucose, CRP and five more) to get your Levine PhenoAge in years, in US or SI units, with the formula shown. Calculator Open tool

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