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Radiation Protection Adviser (RPA) Services
Radioactive Waste Adviser (RWA) Services
Training & competence
About RP Alba Ltd
Client Area
Resources
Radiological calculators
Blog
Radiological calculators
Class 7 transport
Transport Index (TI) calculator
Dose rate at 1 m from a given Transport Index (TI)
Distance (inverse square law)
Calculation of a dose rate at a new distance
Calculation of distance required to achieve a target dose rate
Dose and dose rate
Effective dose unit converter
Effective dose rate unit converter
Absorbed dose rate unit converter
Absorbed dose unit converter
External radiation dose estimator
Maximum stay time estimator
Radioactivity & activity concentrations
Radioactivity unit converter
Radioactivity mass concentration unit converter
Radioactivity volume concentration unit converter
Radon concentration unit converter
Radioactivity calculator (activity to mass)
Radioactivity calculator (mass to activity)
Radioactive decay calculator (defined elapsed time period)
Radioactive decay calculator (specified dates)
Radioactive decay calculator (time to reach target activity)
Radioactive decay calculator (date/time to reach target activity)
Radon calculations
Workplace radon dose calculator
Home and public radon dose calculator
Advanced radon exposure profile calculator
Radon in drinking water ingestion dose calculator
Contact
Radiation Protection Adviser (RPA) Services
Radioactive Waste Adviser (RWA) Services
Training & competence
About RP Alba Ltd
Client Area
Resources
Radiological calculators
Blog
Radiological calculators
Class 7 transport
Transport Index (TI) calculator
Dose rate at 1 m from a given Transport Index (TI)
Distance (inverse square law)
Calculation of a dose rate at a new distance
Calculation of distance required to achieve a target dose rate
Dose and dose rate
Effective dose unit converter
Effective dose rate unit converter
Absorbed dose rate unit converter
Absorbed dose unit converter
External radiation dose estimator
Maximum stay time estimator
Radioactivity & activity concentrations
Radioactivity unit converter
Radioactivity mass concentration unit converter
Radioactivity volume concentration unit converter
Radon concentration unit converter
Radioactivity calculator (activity to mass)
Radioactivity calculator (mass to activity)
Radioactive decay calculator (defined elapsed time period)
Radioactive decay calculator (specified dates)
Radioactive decay calculator (time to reach target activity)
Radioactive decay calculator (date/time to reach target activity)
Radon calculations
Workplace radon dose calculator
Home and public radon dose calculator
Advanced radon exposure profile calculator
Radon in drinking water ingestion dose calculator
Contact
Useful reference information
Update 19/12/2025 – New webpage under construction. Info coming soon.
