Best Rpe Calculator Apps

250+ iOS apps curated and reviewed

4.5 avg rating
20 free apps
Updated July 2026

Every iPhone needs a few good rpe calculator apps. We benchmark 250+ of them on App Store rating, freshness, and pricing, then surface the standouts so you don't have to scroll the App Store yourself.

Compare top Rpe Calculator Apps (July 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1RPERPEFree5.0★ (8)NoNoMay 2026
2Bar Is Loaded - Gym CalculatorBar Is Loaded - Gym CalculatorFree4.8★ (251)NoYesJul 2026
3StressCalc - RPE CalculatorStressCalc - RPE CalculatorFree5.0★ (4)NoNoMay 2026
4Iron PlusIron PlusFree5.0★ (19)NoNoJun 2026
5One Rep Max: 1RM CalculatorOne Rep Max: 1RM CalculatorFree4.4★ (178)YesYesAug 2026
6Powerlift ProPowerlift ProFree4.7★ (286)YesYesJul 2026
7OneCalc: All-in-one CalculatorOneCalc: All-in-one CalculatorFree4.6★ (4.8K)YesNoAug 2026
8Sci:Pro CalculatorSci:Pro CalculatorFree4.8★ (3.6K)NoNoAug 2026

Top Picks for Rpe Calculator

RPE#1

RPE by Jordan Fraughton

Calculator
Editor's Choice
💪 Health & Fitness
5.0(8 ratings)
Free
RPE screenshot 1
RPE screenshot 2
RPE screenshot 3
RPE screenshot 4

This tool helps you measure workout intensity by rating your perceived effort on a numerical scale. It provides a quantifiable measure to track progress and tailor training for optimal fitness results.

Bar Is Loaded - Gym Calculator#2

Bar Is Loaded - Gym Calculator by Danny Li

It's leg day, not brain day.
Strong Contender
💪 Health & Fitness
4.8😊(251 ratings)
FreeIn-App Purchases
Bar Is Loaded - Gym Calculator screenshot 1
Bar Is Loaded - Gym Calculator screenshot 2
Bar Is Loaded - Gym Calculator screenshot 3
Bar Is Loaded - Gym Calculator screenshot 4
Bar Is Loaded - Gym Calculator screenshot 5
Bar Is Loaded - Gym Calculator screenshot 6

This app simplifies weightlifting calculations, instantly determining the correct plates to load onto a barbell. It offers custom settings for inventory and a reverse calculator, along with tools for meet preparation and performance scoring.

What We Love

  • 👍 Extremely user-friendly and intuitive interface
  • 🚀 Fast and accurate plate loading calculations
  • 💰 Completely free with no ads or subscriptions
  • 🧠 Eliminates mental math during workouts

Room to Improve

  • 🐛 Frequent crashes and infinite loading screens
  • 🐛 5kg calculation glitch in reverse section
  • 🐛 Inconsistent weight calculations with kg plates
StressCalc - RPE Calculator#3

StressCalc - RPE Calculator by Rahul Goel

Banish math in the gym
Worth Considering
💪 Health & Fitness
5.0(4 ratings)
Free
StressCalc - RPE Calculator screenshot 1
StressCalc - RPE Calculator screenshot 2
StressCalc - RPE Calculator screenshot 3
StressCalc - RPE Calculator screenshot 4
StressCalc - RPE Calculator screenshot 5

This app helps weightlifters quickly calculate their Rating of Perceived Exertion (RPE) with a simple, user-friendly interface. It visually displays the weight needed for the bar and supports various plate weights, making gym math effortless.

More Rpe Calculator apps to explore

4
Iron Plus
Iron Plus
Iron Plus
by Travis Napier
Free

This app provides essential gym calculations for weightlifters. It features tools for RPE, weight conversion, and warm-up planning to optimize training sessions.

RPE CalculatorWeight Converter (lbs to kg)Plate loading suggestions
💪 Health & Fitness
(19)
free
5
One Rep Max: 1RM Calculator
One Rep Max: 1RM Calculator
One Rep Max: 1RM Calculator
Strength Tracker & Gym PR Tool
Free

Safely estimate your maximum lift potential for various strength exercises using scientific formulas. Track your progress visually, set goals, and fine-tune estimates with perceived exertion. Ideal for powerlifters, CrossFit athletes, and strength enthusiasts.

Precise 1RM calculations with 7 scientific formulasRPE integration for fine-tuned estimatesCustom exercise tracking for any lift
💪 Health & Fitness
(178)
free with in-app purchases
6
Powerlift Pro
Powerlift Pro
Powerlift Pro
#1 Powerlifting App
Free

This app provides AI-powered personalized strength training programs and a comprehensive suite of tools for tracking workouts, managing macros, and calculating lifting metrics. It offers real-time adjustments and weak point optimization to help users achieve their strength goals.

AI-powered personalized training programsReal-time workout adjustmentsWorkout tracker and history
💪 Health & Fitness
(286)
free with in-app purchases
7
OneCalc: All-in-one Calculator
OneCalc: All-in-one Calculator
OneCalc: All-in-one Calculator
Calculates everything. Try it.
Free

This app offers a comprehensive suite of over 40 calculators and unit converters for various needs, including finance, health, construction, and everyday math. It features standard, scientific, and specialized calculators for tasks like loan amortization, currency conversion, and material estimation.

Over 40 calculators and unit convertersStandard and scientific calculator functionsFinancial calculators (interest, loan, currency)
📊 Productivity
(4.8K)
free with in-app purchases
8
Sci:Pro Calculator
Sci:Pro Calculator
Sci:Pro Calculator
by Jerry Montgomery
Free

This app offers a versatile calculator with three distinct modes: Basic, Scientific, and Programmer. It provides a history view, sharing capabilities, and supports various input and output formats. The app is designed for iPhone, iPad, and iPod Touch.

Multi-mode calculator (Basic, Scientific, Programmer)Calculation historyShare results via email
🔧 Utilities
(3.6K)
free
9
Concrete Calculator Plus
Concrete Calculator Plus
Concrete Calculator Plus
by Inch Calculator
Free

This app provides 15 calculators for estimating concrete, blocks, mortar, rebar, and gravel. It supports various shapes and units, offering material cost estimations for construction projects.

15 concrete estimation calculatorsEstimates cubic yards or bagsCalculates material costs
🔧 Utilities
(21K)
ad-supported
10
Calculator for iPad!
Calculator for iPad!
Calculator for iPad!
Basic & Scientific Calculator
Free

This app offers both basic and scientific calculation modes with over 30 scientific operations. It allows for customization of the app's appearance and includes features for note-taking, drawing, and viewing calculation history. It supports high accuracy calculations and nested parentheses.

Basic and scientific calculator modesOver 30 scientific operationsCustomizable appearance (iPad)
🔧 Utilities
(60K)
free
11
Gravel Calculator Plus
Gravel Calculator Plus
Gravel Calculator Plus
by Inch Calculator
Free

Easily estimate the quantity of various landscaping and hardscaping materials like gravel, stone, and sand. Get precise measurements in tons, cubic yards, or cubic meters for your projects.

Estimate gravel, stone, rock, sand, and topsoilCalculate material needed for landscapingCalculate material needed for hardscape projects
🔧 Utilities
(1.7K)
ad-supported
12
Calculator∫
Calculator∫
Calculator∫
by 7th Gear
Free

Perform calculations quickly and accurately with large buttons. Personalize the interface by selecting custom background and text colors. This straightforward utility is designed for intuitive use.

Large buttons for easy inputAccurate calculationsCustomizable background colors
🔧 Utilities
(7)
free
13
RPN Calculator free
RPN Calculator free
RPN Calculator free
by Benjamin Pisano
Free

This utility app offers a scientific calculator with Reverse Polish Notation (RPN) mode for faster calculations. Its simple interface is designed for engineers and scientists, providing efficient computation on iPhone devices.

Scientific calculator functionsReverse Polish Notation (RPN) modeFast calculation
🔧 Utilities
(1)
free
14
E1RM Calculator - RPE Based
E1RM Calculator - RPE Based
E1RM Calculator - RPE Based
RPE-Based Training Calculator
Free
💪 Health & Fitness
(0)
15
Calculator : Scientific Calculator & converter
Calculator : Scientific Calculator & converter
Calculator : Scientific Calculator & converter
Scientific Calculator
Free

This app offers a comprehensive scientific calculator with advanced functions for math, finance, and engineering. It includes unit and currency conversion, a constants library, and a biorhythm calculator for daily insights. The interface is intuitive and supports multiple calculation modes.

Scientific calculations (sin, cos, tan, log, etc.)Currency and unit converterConstants library (1500+ constants)
🔧 Utilities
(3)
free
16
RPE Lab
RPE Lab
RPE Lab
1RM & RPE Gym Calculator
Free
💪 Health & Fitness
(0)
17
Calculator⁻
Calculator⁻
Calculator⁻
Best hand calculator
Free

A straightforward calculator app designed for simplicity, offering basic arithmetic operations and percentage calculations. It allows users to record and recall past results, customize colors, and enable touch sounds for a personalized experience.

Basic arithmetic operationsPercentage calculationsRecord and recall results
🔧 Utilities
(3.4K)
ad-supported
18
R1+R2 Zs Ze Calculator
R1+R2 Zs Ze Calculator
R1+R2 Zs Ze Calculator
Calculate R1+R2 or Zs.
Free

This utility app helps electrical professionals quickly calculate R1+R2, Zs, or Ze values. It allows users to input two known values to derive the third, aiding in the verification of measured electrical readings.

Calculate ZsCalculate R1+R2Calculate Ze (with caution)
🔧 Utilities
(0)
ad-supported
19
Calculator of Formulas
Calculator of Formulas
Calculator of Formulas
Includes graphical plots
Free

This application calculates and graphs mathematical formulas with multiple variables. It allows for programming complex equations, plotting graphs with variable manipulation, and saving frequently used formulas. It also generates tables of results for easy export.

Programs formulas with up to six variablesPlots graphs with variable manipulationRay plotting for n-dimensional functions
📊 Productivity
(1)
free
20
Calculator· - Easy to Use
Calculator· - Easy to Use
Calculator· - Easy to Use
by Netviking AB
Free

A straightforward calculator app designed for simplicity and ease of use. It features large buttons and a clear display, supporting basic arithmetic operations like addition, subtraction, multiplication, and division.

Large buttonsClear displayAddition
🔧 Utilities
(201)
free with in-app purchases

FAQ about Rpe Calculator

What are the best rpe calculator apps for iPhone?
RPE tops our rpe calculator apps ranking as of July 2026, with a 5.0-star average from 8 App Store ratings, and it's free to download.
Yes — 20 of the top rpe calculator apps we rank are free to download, including RPE and Bar Is Loaded - Gym Calculator.
RPE has no ads and has no in-app purchases, according to its App Store listing as of July 2026.
We track 250+ rpe calculator apps on the iOS App Store as of July 2026, ranked by rating, recency, and analysis of real user reviews.
RPE stands for Rate of Perceived Exertion. It's a subjective measure of how hard you feel you are working during exercise, typically on a scale of 1 to 10.
RPE helps you gauge your workout intensity, allowing you to track progress, make informed training decisions, and tailor your routines to achieve specific fitness goals more effectively.

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