Check practice problems using the printed DOE-HDBK-1122-2009 conversion factors and separate SI prefix steps. Printed factors can be rounded or conditional, so a handbook route is not always an exact physical equivalence. Routes affected by unresolved source corrections are paused with an explanation. This calculator is intended for exam preparation.
Choose the unit you have and the unit you need from 130 units in the handbook’s Module 1.02 tables. If you type a search, select a result before calculating. The destination list shows compatible units.
For rates and densities, enable the per-unit row. This lets you convert quantities such as mrem per hour or grams per cubic centimetre. The calculator uses a direct handbook factor where one exists; otherwise it converts the numerator and denominator separately.
The member worked solution shows the conversion factors in order, including separate prefix steps, with the units arranged to cancel. Handbook page references let you check each factor and practice setting up the same calculation yourself.
Results, input checks, source references and accuracy notes are free. Paid membership adds the step-by-step solution and calculator keystrokesKey sequences for 14 calculator optionsScientific — commonly exam-legalTI-30XaTI-30X IIS / IIBTI-30XS MultiViewTI-34 MultiViewTI-36X ProCasio fx-991EX ClassWizCasio fx-115ES PlusCasio fx-300ES PlusSharp EL-W516TOn screen, no handheld neededRadCon calculator (on screen)Graphing / programmable — practice at homeTI-84 Plus CE (and TI-83/84 family)Casio fx-9750GIII / fx-9860GIIIHP 35sNot sure which you haveGeneric scientificChoose the calculator you use to practice. Check with your testing site which models are allowed in the exam..
Already a member? Open the full calculator.
Use this calculator for study and reference. For operational radiological work, follow your site’s controlled procedures and approved references.
Read the handbook for free, then use study sessions and practice tests to check what you’ve learned. Membership includes worked solutions and progress tracking. Access is currently by invitation; sign up to hear when it opens.