RES Calci
Everyone
info
10+
Downloads
Everyone
Learn more
About this app
RES Tools – Dew-Point & Spring Calculator
RES Tools brings two essential mechanical-and-process calculations to your pocket:
Dew-Point ⇄ ppm H₂O
Convert dew-point temperature (°C) to water-vapour concentration in ppm(v) at any pressure in bar—or reverse-convert ppm back to dew point.
Uses the industry-standard Magnus–Tetens equation (–45 °C … +60 °C).
Coil-Spring Rate / Force
Enter wire Ø, inner Ø, active coils, shear modulus, free length, and desired working deflection.
Instantly see spring constant k (N/m), working force, max force at solid height, pitch, free length, solid length, and all fabrication parameters.
Automatic feasibility check warns if pitch or free length are impossible.
Why you’ll like it
100 % offline – all maths runs on your device; no sign-up, no data collection.
Ad-free & lightweight – under 3 MB install size.
Dark Material UI – clear cyan accents for quick reading in the workshop or lab.
Metric first – uses SI units throughout, with kilogram-force shown beside Newtons for quick intuition.
Made by engineers, for engineers – perfect for process, mechanical, HVAC, and maintenance work.
Data safety
RES Tools collects no personal data, uses no analytics SDKs, and requests zero dangerous permissions. See the in-app Privacy Policy for details.
Contact & support
Need another calculator or found a bug?
Email Pranay Kiran → info@resindia.co.in
Renewable Energy Systems Limited © 2025
RES Tools brings two essential mechanical-and-process calculations to your pocket:
Dew-Point ⇄ ppm H₂O
Convert dew-point temperature (°C) to water-vapour concentration in ppm(v) at any pressure in bar—or reverse-convert ppm back to dew point.
Uses the industry-standard Magnus–Tetens equation (–45 °C … +60 °C).
Coil-Spring Rate / Force
Enter wire Ø, inner Ø, active coils, shear modulus, free length, and desired working deflection.
Instantly see spring constant k (N/m), working force, max force at solid height, pitch, free length, solid length, and all fabrication parameters.
Automatic feasibility check warns if pitch or free length are impossible.
Why you’ll like it
100 % offline – all maths runs on your device; no sign-up, no data collection.
Ad-free & lightweight – under 3 MB install size.
Dark Material UI – clear cyan accents for quick reading in the workshop or lab.
Metric first – uses SI units throughout, with kilogram-force shown beside Newtons for quick intuition.
Made by engineers, for engineers – perfect for process, mechanical, HVAC, and maintenance work.
Data safety
RES Tools collects no personal data, uses no analytics SDKs, and requests zero dangerous permissions. See the in-app Privacy Policy for details.
Contact & support
Need another calculator or found a bug?
Email Pranay Kiran → info@resindia.co.in
Renewable Energy Systems Limited © 2025
Pocket-size engineering toolkit —fast, offline, ad-free.
Updated on
Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
- No data shared with third partiesLearn more about how developers declare sharing
- No data collectedLearn more about how developers declare collection
- Committed to follow the Play Families Policy
What’s new
Initial BringUp
Everyone
Learn moreApp support
About the developer
POTLA PRANAY KIRAN
reachweber@cottonseeds.org
India
