MetricSmith
Complete Measurement Tools
Free · In‑App Purchases · Designed for iPad. Not verified for macOS.
MetricSmith now speaks 12 new languages. Convert anything instantly with custom units, Batch Mode, and a clean, all‑in‑one workspace for work, study, and everyday use.
MetricSmith — Complete Measurement Tools
MetricSmith is a clean, fast, and accurate unit converter built for people who work with numbers every day. Whether you're studying, working with technical data, or handling everyday measurements, MetricSmith provides a focused workspace designed for clarity, speed, and reliability. The minimalist interface keeps distractions away so you can get the right value instantly.
Why MetricSmith
MetricSmith is built for accuracy and consistency. Units are verified, categories are organised for quick access, and the workflow supports both simple checks and advanced calculations. It’s designed for students, professionals, researchers, analysts, and everyday users who need dependable results. The app adapts naturally to different workflows, from quick one‑off conversions to long technical sessions.
New in This Version
MetricSmith now includes expanded scientific energy and power conversions, including earthquake energy, TNT yield, and multiple engineering power systems. These additions integrate seamlessly into the existing interface and remain easy for general users while offering depth for technical work. The conversion engine has also been refined for smoother numeric input and more stable performance.
Free Version
Essential everyday conversions:
Metric and imperial units
Length, area, volume, mass, temperature, speed
Chinese Weight (市制) — 钱, 两, 斤
Instant results
Smart search
Saved Conversions
Light and Dark themes
Everything needed for daily conversions is free.
Lifetime Access
Unlock advanced tools for professional and scientific workflows:
Custom units and categories
Batch Mode
Widgets
History Export
Advanced themes
Pro‑only categories and units
One‑time purchase.
Pro‑Only Categories
Specialised units for engineering, science, and industry:
Energy and Oil
CO₂ Emissions
Underwater and Altitude Pressure
Physics and Chemistry
Chinese Weight and Volume Systems
Astronomical Units
Advanced Engineering and Speed Units
Agriculture and Industry
Ideal for engineering, lab work, research, energy markets, and analysis.
Chinese Measurement Systems
A complete library of modern and traditional Chinese units for engineering, trade, cultural research, and historical study.
Features
Hundreds of units across dozens of categories
Clean, organised layout
Fast, accurate results
Custom units and categories
Reorder categories
Saved Conversions
History Export
Batch Mode
Convert multiple values at once — perfect for spreadsheets, lab work, and bulk calculations.
Widgets
Pin any category or custom unit to your Home Screen for instant access.
Design Philosophy
MetricSmith is built for clarity and long‑term usability. The layout is simple, the typography is readable, and every interaction is designed to reduce friction. Whether you’re converting a single value or working through detailed calculations, the app stays responsive, predictable, and easy to use.
About MetricSmith
MetricSmith is built for people who value clarity and precision. The app focuses on thoughtful design, reliable results, and a workflow that feels natural whether you’re converting a single value or working through detailed calculations. Every category is organised to reduce friction, every interaction is tuned for speed, and every feature is designed to support both everyday tasks and professional work. MetricSmith aims to be a dependable tool you can rely on across study, work, research, and daily life.
Privacy‑First
Your data stays on your device.
Privacy Policy: https://www.bamuda.com.au/metricsmithprivacy.html
Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
What’s New
This update delivers a significant expansion of MetricSmith’s scientific engine, introducing new energy and power conversions across earthquakes, TNT yield, and multiple engineering fields. Numeric input handling has been improved for stability and precision, and overall app performance has been enhanced.
Earthquake Energy Conversion
A complete earthquake energy model is now available:
Convert seismic magnitude (Mw) to Joules
Convert magnitude to kiloton TNT equivalent
Convert Joules ↔ magnitude
Convert TNT yield ↔ magnitude
This allows users to understand earthquakes and explosions through a unified energy scale.
TNT Energy Conversion
Added full TNT yield conversions using scientifically accurate TNT equivalence:
Kiloton TNT
Ton TNT
Megaton TNT
Gigajoule
Joule
All conversions are reversible and based on standard TNT energy constants.
Advanced Power Conversions
MetricSmith now includes comprehensive power calculations across major engineering domains:
Chemical Power
Reaction power (ṁ · ΔH)
Fuel cell and battery power (V · I)
Linear conversions between W, kW, and MW
Mechanical Power
Shaft power from torque and angular velocity
Shaft power from torque and RPM
Watts ↔ horsepower
Microwave / RF Power
dBm ↔ watts
dBW ↔ watts
EIRP calculations using linear gain
Radiant / Optical Power
Irradiance → radiant flux
Illuminance → luminous flux
W ↔ kW
Thermal Power
Heat flow (J/s → W)
Mass flow thermal power (ṁ · cp · ΔT)
W ↔ kW ↔ MW
W ↔ BTU/hr ↔ Ton of Refrigeration
Laser Power
Beam intensity (W/m²)
Pulse peak power (E/τ)
W ↔ kW ↔ MW
Hydropower
Turbine output using ρ · g · Q · H · η
W ↔ kW ↔ MW
Wind Power
Turbine power using ½ · ρ · A · v³ · Cp
W ↔ kW ↔ MW ↔ hp
User Experience Improvements
More stable numeric input with full decimal support
Cleaner and more predictable conversion behavior
Improved handling of scientific and non‑linear units
Arrow‑based conversion for precise control and reduced input jitter
Performance Enhancements
Faster and more reliable conversion engine
Reduced UI glitches during text entry
Improved stability across all unit categories
The developer, Bamuda Corporation Pty Ltd, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Bamuda Corporation Pty Ltd
- Size
- 16.1 MB
- Category
- Utilities
- Compatibility
Requires iOS 17.6 or later.
- iPhone
Requires iOS 17.6 or later. - iPad
Requires iPadOS 17.6 or later. - Mac
Requires macOS 14.6 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.3 or later.
- iPhone
- Languages
English and 12 more
- English, French, German, Italian, Japanese, Korean, Polish, Portuguese, Russian, Simplified Chinese, Spanish, Traditional Chinese, Turkish
- Age Rating
4+
- 4+
- In-App Purchases
Yes
- MetricSmith Life Access $6.99
- Copyright
- © 2026 Bamuda Corporation Pty Ltd