Salinity Conversion Calculator
Convert electrical conductivity measurements to practical salinity units (PSU) using the UNESCO practical salinity scale. Essential for oceanography, aquaculture, and water quality monitoring.
Salinity Conversion
intermediateConvert between conductivity and practical salinity units
Formula
PSU from conductivity ratio
Scenario A
How It Works
Salinity is calculated from the conductivity ratio (Rₜ = sample conductivity / standard seawater conductivity at 15°C = 42,900 μS/cm). This uses the UNESCO Practical Salinity Scale (PSS-78) polynomial.
Rₜ = Conductivity / 42,900
S = 0.0120 − 0.2174×Rₜ^0.5 + 25.3283×Rₜ + ...
Frequently Asked Questions
What is typical seawater salinity?
Open ocean salinity is typically 33-37 PSU (average ~35 PSU). Brackish water ranges from 0.5-30 PSU. Freshwater is <0.5 PSU. Hypersaline environments can exceed 50 PSU.
Why does temperature matter for salinity measurement?
Conductivity is temperature-dependent — it increases ~2% per °C. Temperature must be measured simultaneously for accurate salinity calculation. Most modern CTD instruments account for this automatically.
Save Configuration Snapshot
Save current parameters to your dashboard for instant one-click reloading.
About This Calculator & Guide
About the Salinity Conversion Calculator
The Salinity Conversion Calculator is a specialized online utility designed to help you convert conductivity (μs/cm) to practical salinity (psu) units. free online salinity converter for oceanography, aquaculture, and environmental monitoring. It performs calculations in real-time to provide immediate, reliable estimates for study, work, or daily tasks.
How to Use
Simply enter your parameters in the input fields of the calculator widget above. The tool evaluates the inputs instantly and displays the results in real-time. You can modify any value to check alternate scenarios and compare figures dynamically.
Data Privacy & Safety
All calculations are executed locally within your web browser. No inputs are sent to our servers or stored externally, ensuring your personal and financial details remain completely private and secure.
FAQ
Frequently Asked Questions
What does the Salinity Conversion Calculator do?+
Convert conductivity (μS/cm) to practical salinity (PSU) units. Free online salinity converter for oceanography, aquaculture, and environmental monitoring. It is designed for quick everyday use and gives clear results without requiring a sign in.
Is the Salinity Conversion Calculator free to use?+
Yes. The Salinity Conversion Calculator is free to use online and works directly in your browser.
Can I use the Salinity Conversion Calculator on mobile?+
Yes. The calculator layout is responsive, so you can use it on phones, tablets, laptops, and desktop screens.