Calculators

  • 1. Solute-Solver LITE single patient calculator v02(Urea)

    Input pre and post BUN, solve for V, eKt/V, stdKt/V and SAN-stdKt/V. single-treatment calculator.

  • 2. Solute-Solver 2.17 (Urea)

    Input pre and post BUN, solve for V, eKt/V, stdKt/V and SAN-stdKt/V. Program is contained within a single file.

  • 3. Solute-Grapher 2.17 (Urea)

    Same as Solute-Solver. In page mode output click on the GRAPH button to generate a graph of the weekly SUN profile. Program is contained within a single file.

  • 4. Solute Solver-Lite Multipatient (Urea)

    Good place to start. Only 12 inputs. Uses mg/dL only, no anthropometrics, no hemodiafiltration option nor special modes. Click on GRAPH in page output for a weekly SUN trace.

  • 5. What If? (Urea) 1.22

    One way to estimate what the Kt/V and pre- and postdialysis SUN values will be for a patient with a given modeled V and G and different treatment schedules. Added HDF code and graph of weekly SUN trace.

  • 6. What is the K0A? (Urea)

    Input clearance values from a dialyzer spec sheet and get the K0A.

  • 7. What is the PBED?

    Calculate equivalent phosphate binder dose.

  • 8. Phosphate Solver 3.07

    Estimate equivalent phosphate binder dose, ingested phosphorus per day, and predialysis serum phosphate. Version 3.0+ updates now include HDF and predialysis hematocrit as an input. Click on GRAPH in page mode for a weekly serum phosphate trace.

  • 9. Creatinine-Solver-Grapher 1.27

    Input pre and post serum creatinine, solve for creatinine generation rate plus the usual kinetic variables. Click on GRAPH on page output for a weekly serum creeatinine trace.

  • 10. What if? (Creatinine) 1.24

    Input creatinine generation rate, estimated volume of distribution, and treatment specs and get estimated pre- and postdialysis serum creatinine, plus plus the usual kinetic variables.

  • 11. Estimating residual kidney creatinine clearance, single-patient v04

    Input creatinine generation rate, estimated volume of distribution, and treatment specs and predialysis serum creatinine to get an estimate of residual kidney creatinine (water) clearance. This version includes HDF

  • 12. Estimating residual kidney creatinine clearance, v1.43

    Input creatinine generation rate, estimated volume of distribution, and treatment specs and predialysis serum creatinine to get an estimate of residual kidney creatinine (water) clearance. This version includes HDF

  • 13. What if? (β2M) 1.54

    Input β2M generation rate, estimated volume of distribution, extrarenal clearance and treatment specs and get estimated pre- and postdialysis serum β2M. Click on GRAPH in page output for a weekly B2M trace.

LATEST DEVELOPMENTS

2026/09/13 Updated Javascript on single-patient Kt/V and KrCr calculators and on PBED and K0A calculators to improve layout when accessed by mobile phone.

2026/09/10 Updated Javascript on all calculators to minimize risk of carryover from previous rows; added graphical outputs (weekly serum solute traces) to results pages for urea, creatinine, phosphate, and B2M.

2025/09/14 Uploaded a calculator (version 1.40) to estimate residual kidney creatinine clearance.

2024/04/02 Updated beta version (1.50) of a what-if calculator for beta-2-microglobulin.

2024/01/21 Updated beta version (1.47) of a what-if calculator for beta-2-microglobulin.

2023/12/03 Uploaded a beta version of a what-if calculator for beta-2-microglobulin.

2022/08/27 Updated Phosphate Solver to correct a small convective clearance error (QF sign was reversed in the non-index dialysis treatments for both urea and phosphate). The correction results in a very slight change in clearance.

2022/06/22 Updated Phosphate Solver to include EUDIAL HDF equations, plus a number of housekeeping updates. Predialysis hematocrit is now an input.

2021/09/28 Moved K0A calculator from HDCN to here; Added PBED calculator.

2021/09/25 Added single-patient Kt/V calculator; Fixed maxdate from 2020 to 2025 in Solute Solver; Working on changing grapher from Flash to HTML5.

2019/06/26 Fixed unit conversion bug in phosphate solver when mmol is entered and PREPHOS is entered as 999.

2019/06/04 Fixed unit conversion bugs in creatine solver that were giving erroneous KrCr readings with urine input in micromol format; Fixed semicolon input mode for 996; urea: aligned row output for 996 mode.

2019/01/31 Changed the primary input and reporting variable of Phosphate Solver to estimated (or input) ingested phosphorus instead of absorbable phosphorus.



Open up the HTML file in a text editor to see a log of the changes made, plus, all of the equations used will be visible, with annotated explanations. Please make sure that you are using the latest version of each calculator.