All Blood Sugar, Blood Pressure, and Kidney Calculators & Printable Logs

Every public calculator below runs directly in your browser without an account, displays its published equation and units, and preserves full internal precision before rounding.

Blood Sugar & HbA1c Calculators

Convert laboratory HbA1c between NGSP (%) and IFCC (mmol/mol), translate A1C into estimated average glucose (eAG), compute CGM Glucose Management Indicator (GMI), check glucose variability (CV% and SD), and print structured log sheets.

A1C to eAG Calculator

Translate laboratory NGSP HbA1c (%) into estimated average glucose (eAG) in both mg/dL and mmol/L using the Nathan et al. (2008) ADAG linear regression equation.

Formula: eAG (mg/dL) = 28.7 × A1C (%) − 46.7; eAG (mmol/L) = eAG (mg/dL) / 18.0182

HbA1c Unit Converter (mmol/mol ↔ %)

Convert laboratory HbA1c results between IFCC standard units (mmol/mol, used in the UK, Europe, and Australia) and NGSP/DCCT percentage units (%, used in the US and Canada) using the published NGSP/IFCC master equation.

Formula: NGSP (%) = 0.09148 × IFCC (mmol/mol) + 2.152; IFCC (mmol/mol) = (NGSP (%) − 2.152) / 0.09148

Blood Glucose Unit Converter (mg/dL ↔ mmol/L)

Convert blood glucose values between milligrams per deciliter (mg/dL) and millimoles per liter (mmol/L) using the exact molar mass factor of glucose (18.0182).

Formula: mmol/L = mg/dL / 18.0182; mg/dL = mmol/L × 18.0182

GMI Calculator (Glucose Management Indicator)

Calculate your Glucose Management Indicator (GMI) in both NGSP-aligned % and IFCC-equivalent mmol/mol from your continuous glucose monitor (CGM) mean glucose using the published Bergenstal et al. (2018) formula.

Formula: GMI (%) = 3.31 + 0.02392 × [mean glucose in mg/dL]; GMI (mmol/mol) = (GMI (%) − 2.152) / 0.09148

Glucose Variability Calculator (CV% & SD)

Paste a list of glucose readings (separated by commas, spaces, or newlines) to compute arithmetic mean, population standard deviation (SD), coefficient of variation (CV%), min/max, and count of entered readings within your selected target range.

Formula: Mean = (1/N) Σx_i; SD = √[(1/N) Σ(x_i − Mean)²]; CV (%) = 100 × SD / Mean

Printable Blood Sugar & Blood Pressure Log Sheet

Create a clean, clinic-ready weekly or monthly paper log sheet for blood glucose (mg/dL or mmol/L) and blood pressure (mmHg + pulse) — either as a blank printable template for your refrigerator/clipboard or pre-filled with readings.

Formula: Structured A4 / US Letter printable log sheet (blank template or pre-filled from entered readings)

Blood Pressure Calculators & Home Monitoring Logs

Average multi-day seated home blood pressure readings using simple arithmetic mean or the NICE NG136 Day-1 exclusion protocol, check adult ACC/AHA categories, calculate Pulse Pressure and MAP, and generate 1–2 page clinic visit summaries.

Blood Pressure Calculator (Category, Pulse Pressure & MAP)

Classify an adult blood pressure reading against the 2017 ACC/AHA adult reference table and calculate Pulse Pressure (PP) and estimated Mean Arterial Pressure (MAP) in mmHg.

Formula: Pulse Pressure = SBP − DBP; MAP = DBP + (SBP − DBP) / 3

Home Blood Pressure Average Calculator

Calculate your average systolic blood pressure, diastolic blood pressure, and pulse across multiple home readings. Choose between averaging all entered rows or applying the NICE NG136 home monitoring protocol (which discards Day 1 readings).

Formula: Mean SBP = (1/N) ΣSBP_i; Mean DBP = (1/N) ΣDBP_i (supports All Entered & NICE NG136 Day-1 exclusion)

Glucose & Blood Pressure Visit Summary Report

Build a structured, easy-to-scan 1–2 page summary of your recent blood sugar and blood pressure readings—complete with date coverage, fasting vs post-meal glucose averages, min/max values, blood pressure averages, and space for questions to ask at your appointment.

Formula: Structured 1–2 page clinical visit summary (date range, meal-context glucose averages, BP averages, min/max, gap & sparse-data notices)

Kidney & Cardiometabolic Calculators

Normalize spot urine albumin and creatinine units into uACR (mg/g and mg/mmol), estimate adult eGFR with the 2021 CKD-EPI race-free creatinine equation, and calculate Non-HDL cholesterol, HOMA-IR, TyG index, BMI, and waist ratios.

HOMA-IR Calculator (Homeostatic Model Assessment)

Compute the Homeostatic Model Assessment for Insulin Resistance (HOMA-IR) from a paired morning fasting blood draw using the published Matthews et al. (1985) equation.

Formula: HOMA-IR = (Fasting Insulin [µIU/mL] × Fasting Glucose [mg/dL]) / 405

TyG Index Calculator (Triglyceride-Glucose Index)

Calculate the logarithmic Triglyceride-Glucose (TyG) index from fasting triglycerides and fasting glucose, with automatic unit conversion when labs are entered in mmol/L.

Formula: TyG = ln((Fasting Triglycerides [mg/dL] × Fasting Glucose [mg/dL]) / 2)

eGFR Calculator (2021 CKD-EPI Race-Free Equation)

Estimate kidney filtration rate in adults aged 18 years and older using the 2021 CKD-EPI race-free creatinine equation recommended by the National Kidney Foundation (NKF) and American Society of Nephrology (ASN).

Formula: 2021 CKD-EPI: 142 × min(Scr/κ, 1)^α × max(Scr/κ, 1)^−1.200 × 0.9938^Age × [1.012 if female]

Urine Albumin-to-Creatinine Ratio (uACR) Calculator

Normalize spot urine albumin and urine creatinine lab units into the standardized Urine Albumin-to-Creatinine Ratio (uACR) in both mg/g and mg/mmol, and view KDIGO A1, A2, and A3 albuminuria categories.

Formula: uACR (mg/g) = Urine Albumin (mg/dL) / Urine Creatinine (g/dL); uACR (mg/mmol) = uACR (mg/g) × 0.113

Non-HDL Cholesterol Calculator

Calculate Non-HDL cholesterol by subtracting HDL ("good") cholesterol from Total Cholesterol in matching units (mg/dL or mmol/L), with companion unit conversion.

Formula: Non-HDL Cholesterol = Total Cholesterol − HDL Cholesterol

BMI Calculator (Metric & Imperial)

Calculate adult Body Mass Index (BMI) in kg/m² using either metric (kg and cm) or imperial (pounds, feet, and inches) measurements.

Formula: BMI = Weight (kg) / [Height (m)]²

Waist-to-Height & Waist-to-Hip Ratio Calculator

Calculate your Waist-to-Height Ratio (WHtR) and optional Waist-to-Hip Ratio (WHR) in either centimeters or inches to assess central body fat distribution.

Formula: WHtR = Waist / Height; WHR = Waist / Hip (same length unit)

BMR & TDEE Calculator (Mifflin-St Jeor)

Estimate resting Basal Metabolic Rate (BMR) and Total Daily Energy Expenditure (TDEE) in kcal/day using the Mifflin-St Jeor (1990) equation, with optional user-selected carbohydrate percentage arithmetic.

Formula: Mifflin-St Jeor BMR = 10×W(kg) + 6.25×H(cm) − 5×Age + s (s = +5 male, −161 female); TDEE = BMR × Activity Factor

Water Intake & Heart Rate Zone Calculator

Estimate general adult daily fluid intake from body weight and activity duration, alongside estimated age-predicted maximum heart rate and moderate/vigorous aerobic training zones.

Formula: Fluid baseline ≈ 33 mL/kg + 350 mL per 30 min exercise; HRmax (Tanaka) = 208 − 0.7 × Age