---
title: "Karl's Mortgage Calculator - Reviews, Revenue and Downloads in United States | Apple App Store"
description: "Calculate mortgage payments given principal, interest and term. Reverse calculate any one variable given the other three.  Enter a down payment amount or percentage and let the calculator show how lar"
---

# Karl's Mortgage Calculator — United States

![Karl's Mortgage Calculator App Icon](https://is1-ssl.mzstatic.com/image/thumb/Purple221/v4/2e/5a/cc/2e5acc78-b16b-61ce-9026-d0bbe610d4b7/AppIcon-0-0-1x_U007epad-0-1-85-220.png/434x0w.png)

**Developer:** [Karl Jeacle](https://apptail.io/developer/karl-jeacle-Igq)
**Category:** Finance
**Rating:** 4.4/5 (121 ratings)
**Price:** Free
**Bundle ID:** com.drcalculator.ios.mortgage
**Store:** Apple App Store
**Country:** United States
**Version:** 2.7.2 (released 2026-08-30)
**Original Release:** 2015-12-04
**Languages:** English

**App Store Link:** [Download on Apple App Store](https://apps.apple.com/us/app/app/id1025852681)
**AppTail Page:** [https://apptail.io/app/karls-mortgage-calculator-mMXd/united-states](https://apptail.io/app/karls-mortgage-calculator-mMXd/united-states)

## Karl's Mortgage Calculator Description
Calculate mortgage payments given principal, interest and term. Reverse calculate any one variable given the other three.

Enter a down payment amount or percentage and let the calculator show how large a mortgage you require.

See how the monthly payment changes when you factor in additional monthly or annual loan costs such as PMI, HOA, taxes and insurance.

The calculator supports Fixed and Adjustable Rate Mortgages (ARM) loans with up to five changes in interest rates. Interest-only mortgages loans are also supported.

You can pay off your mortgage early with extra payments. Add one-off, monthly and annual extra payments. Choose up to ten additional extra payment amounts and payment periods and the calculator will show how much money you can save on the loan.

Choose from weekly to annual loan payments and adjust the compounding period from daily through annual periods. The calculator supports Canadian mortgages along with UK annual rest mortgages.

Multiple rounding options on loan calculations are also available. Choose between no rounding, round half up, half down, to even, to ceiling and to floor.

The calculator also supports the input and display of multiple currencies.

## Karl's Mortgage Calculator Screenshots
- [Screenshot 1](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource116/v4/1b/5d/da/1b5ddaae-4855-43b7-ad8b-93420b565eeb/f5df61b5-afc8-49cc-b180-e65c7502f594_1.png/1284x2778.png)
- [Screenshot 2](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource126/v4/af/85/a1/af85a115-a740-9181-a1a6-4f42a172f9a1/12fd2b82-e7f0-42e7-9a7c-74c3b63d420b_2.png/1284x2778.png)
- [Screenshot 3](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource116/v4/27/d7/ac/27d7acc4-90aa-c2e5-dca5-f258fb85242a/23382f73-2632-4794-83f8-1189cb155d68_3.png/1284x2778.png)
- [Screenshot 4](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource116/v4/c4/d5/39/c4d539b5-8ab3-d1f1-5014-796d0757a58b/357afd6f-dd52-48dc-a7ab-224c0ef74f55_4.png/1284x2778.png)
- [Screenshot 5](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource116/v4/ac/ba/f1/acbaf103-1085-d812-f4bd-5c74b832dd93/4f4abb6e-8924-4dd7-be41-7be56c334ef8_5.png/1284x2778.png)

## Karl's Mortgage Calculator Rating Breakdown in United States
- 5 stars: 91 (75%)
- 4 stars: 9 (7%)
- 3 stars: 7 (6%)
- 2 stars: 4 (3%)
- 1 stars: 10 (8%)

## Karl's Mortgage Calculator Reviews in United States

### ***** "Hands-down best Mortgage app"
Absolutely love this app such flexibility, and reporting. I immediately bought the paid version of the app instead.
-- Sirius Stealth, 2025-03-27

### **--- "Issues"
I used to love this app but now it doesn’t seem to calculate the extra payment no matter how I input it
-- Psposted, 2024-04-30

### ***** "Incredible AND easy"
This calculator is invaluable for comparing different scenarios and payment schedules for any variety of mortgage products.  The extra payments feature and ability to add in taxes is super useful as well. I can’t speak highly enough about how easy to use it is as well. Strongly recommend for any financial planning for a loan or mortgage product
-- jay19671, 2024-01-06

### ***** "Long time user"
I've been using this app for years.  To me, it's a perfect as I could hope for.  Simple interface but still plenty of options.  You won't find a better mortgage calculator.
-- Dragondrop1, 2023-11-07

### *---- "Loved it at first but not no more"
App was working fine at first but now I can’t even calculate a normal payment. It keeps defaulting to 100 years and it says to change to payment radio button. It’s getting annoying so I stopped using. Please fix
-- Iowa5770, 2023-10-28

### ***** "365 and 360 Interest Compound"
I was excited about it have 365 interest compound selection, I don’t have to open my excel worksheet. But it won’t calculate as 365. I think it’s not working.
-- BoMTG555, 2023-08-05

### ***** "A great mortgage tool"
First, thank you to the developer of this calculator.  Everyone has been coming to me for their mortgage advice because of this simple tool!  

It’s still getting 5 stars however, now maybe with the newer iPhones, I can’t see the entire table to the right.  It seems to be cutoff.  I can still get the first few numbers ie: “400,” instead of “400,000.00”.
-- KingJanks13, 2023-05-24

### ****- "Love this app"
I would give 5 stars if it had updated the FHA MI rules. It’s running off the old numbers. But I use this app all the time! Love it. The ability to add in a temp buy down scenario would be an awesome add too.
-- jensbran, 2023-05-03

### ***** "I love this app"
I just want to let Karl and the world know that I use this app ALL THE TIME. It works so well when I am calculating not only mortgages and commercial loans but also auto loans or really anything. I appreciate you building this!
-- Network Hobi, 2023-04-24

### ***** "Look nowhere else"
Best of best
-- Dilkaran00, 2023-02-09

[View all Karl's Mortgage Calculator reviews and detailed analytics on AppTail](https://app.apptail.io/signup?utm_campaign=ai-crawl&utm_content=reviews)



## Karl's Mortgage Calculator Discovered Keywords
- mortgage calculator plus
- mortgage calculator
- karls
- karl's mortgage calculator
- mortgage payoff track
- debt to income calculator
- mortgage calculator for ipad
- home mortgage calculator
- mortgage payment calculator

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## Karl's Mortgage Calculator Available In
- [United States](https://apptail.io/app/karls-mortgage-calculator-mMXd/united-states)
- [Canada](https://apptail.io/app/karls-mortgage-calculator-mMXd/canada)
- [Indonesia](https://apptail.io/app/karls-mortgage-calculator-mMXd/indonesia)
- [United Kingdom](https://apptail.io/app/karls-mortgage-calculator-mMXd/united-kingdom)
- [Australia](https://apptail.io/app/karls-mortgage-calculator-mMXd/australia)
- [Philippines](https://apptail.io/app/karls-mortgage-calculator-mMXd/philippines)
- [Malaysia](https://apptail.io/app/karls-mortgage-calculator-mMXd/malaysia)
- [United Arab Emirates](https://apptail.io/app/karls-mortgage-calculator-mMXd/united-arab-emirates)
- [Ireland](https://apptail.io/app/karls-mortgage-calculator-mMXd/ireland)
- [Austria](https://apptail.io/app/karls-mortgage-calculator-mMXd/austria)
- [Singapore](https://apptail.io/app/karls-mortgage-calculator-mMXd/singapore)
- [France](https://apptail.io/app/karls-mortgage-calculator-mMXd/france)
- [South Africa](https://apptail.io/app/karls-mortgage-calculator-mMXd/south-africa)
- [New Zealand](https://apptail.io/app/karls-mortgage-calculator-mMXd/new-zealand)
- [Dominican Republic](https://apptail.io/app/karls-mortgage-calculator-mMXd/dominican-republic)
- [Hong Kong SAR China](https://apptail.io/app/karls-mortgage-calculator-mMXd/hong-kong)
- [India](https://apptail.io/app/karls-mortgage-calculator-mMXd/india)
- [Ecuador](https://apptail.io/app/karls-mortgage-calculator-mMXd/ecuador)
- [Colombia](https://apptail.io/app/karls-mortgage-calculator-mMXd/colombia)
- [Denmark](https://apptail.io/app/karls-mortgage-calculator-mMXd/denmark)
- [Algeria](https://apptail.io/app/karls-mortgage-calculator-mMXd/algeria)
- [Estonia](https://apptail.io/app/karls-mortgage-calculator-mMXd/estonia)
- [Egypt](https://apptail.io/app/karls-mortgage-calculator-mMXd/egypt)
- [Spain](https://apptail.io/app/karls-mortgage-calculator-mMXd/spain)
- [Finland](https://apptail.io/app/karls-mortgage-calculator-mMXd/finland)
- [Ghana](https://apptail.io/app/karls-mortgage-calculator-mMXd/ghana)
- [Greece](https://apptail.io/app/karls-mortgage-calculator-mMXd/greece)
- [Croatia](https://apptail.io/app/karls-mortgage-calculator-mMXd/croatia)
- [Hungary](https://apptail.io/app/karls-mortgage-calculator-mMXd/hungary)
- [Israel](https://apptail.io/app/karls-mortgage-calculator-mMXd/israel)
- [Iceland](https://apptail.io/app/karls-mortgage-calculator-mMXd/iceland)
- [Italy](https://apptail.io/app/karls-mortgage-calculator-mMXd/italy)
- [Japan](https://apptail.io/app/karls-mortgage-calculator-mMXd/japan)
- [Kenya](https://apptail.io/app/karls-mortgage-calculator-mMXd/kenya)
- [South Korea](https://apptail.io/app/karls-mortgage-calculator-mMXd/south-korea)
- [Kuwait](https://apptail.io/app/karls-mortgage-calculator-mMXd/kuwait)
- [Kazakhstan](https://apptail.io/app/karls-mortgage-calculator-mMXd/kazakhstan)
- [Lebanon](https://apptail.io/app/karls-mortgage-calculator-mMXd/lebanon)
- [Sri Lanka](https://apptail.io/app/karls-mortgage-calculator-mMXd/sri-lanka)
- [Lithuania](https://apptail.io/app/karls-mortgage-calculator-mMXd/lithuania)
- [Luxembourg](https://apptail.io/app/karls-mortgage-calculator-mMXd/luxembourg)
- [Latvia](https://apptail.io/app/karls-mortgage-calculator-mMXd/latvia)
- [Madagascar](https://apptail.io/app/karls-mortgage-calculator-mMXd/madagascar)
- [North Macedonia](https://apptail.io/app/karls-mortgage-calculator-mMXd/north-macedonia)
- [Malta](https://apptail.io/app/karls-mortgage-calculator-mMXd/malta)
- [Mexico](https://apptail.io/app/karls-mortgage-calculator-mMXd/mexico)
- [Slovenia](https://apptail.io/app/karls-mortgage-calculator-mMXd/slovenia)
- [Armenia](https://apptail.io/app/karls-mortgage-calculator-mMXd/armenia)
- [Argentina](https://apptail.io/app/karls-mortgage-calculator-mMXd/argentina)
- [Azerbaijan](https://apptail.io/app/karls-mortgage-calculator-mMXd/azerbaijan)
- [Belgium](https://apptail.io/app/karls-mortgage-calculator-mMXd/belgium)
- [Bulgaria](https://apptail.io/app/karls-mortgage-calculator-mMXd/bulgaria)
- [Bahrain](https://apptail.io/app/karls-mortgage-calculator-mMXd/bahrain)
- [Bermuda](https://apptail.io/app/karls-mortgage-calculator-mMXd/bermuda)
- [Brunei](https://apptail.io/app/karls-mortgage-calculator-mMXd/brunei)
- [Bolivia](https://apptail.io/app/karls-mortgage-calculator-mMXd/bolivia)
- [Brazil](https://apptail.io/app/karls-mortgage-calculator-mMXd/brazil)
- [Belarus](https://apptail.io/app/karls-mortgage-calculator-mMXd/belarus)
- [Belize](https://apptail.io/app/karls-mortgage-calculator-mMXd/belize)
- [Switzerland](https://apptail.io/app/karls-mortgage-calculator-mMXd/switzerland)
- [Chile](https://apptail.io/app/karls-mortgage-calculator-mMXd/chile)
- [China](https://apptail.io/app/karls-mortgage-calculator-mMXd/china)
- [Cyprus](https://apptail.io/app/karls-mortgage-calculator-mMXd/cyprus)
- [Czechia](https://apptail.io/app/karls-mortgage-calculator-mMXd/czechia)
- [Germany](https://apptail.io/app/karls-mortgage-calculator-mMXd/germany)
- [Senegal](https://apptail.io/app/karls-mortgage-calculator-mMXd/senegal)
- [Thailand](https://apptail.io/app/karls-mortgage-calculator-mMXd/thailand)
- [Tunisia](https://apptail.io/app/karls-mortgage-calculator-mMXd/tunisia)
- [Türkiye](https://apptail.io/app/karls-mortgage-calculator-mMXd/turkey)
- [Taiwan](https://apptail.io/app/karls-mortgage-calculator-mMXd/taiwan)
- [Ukraine](https://apptail.io/app/karls-mortgage-calculator-mMXd/ukraine)
- [Uzbekistan](https://apptail.io/app/karls-mortgage-calculator-mMXd/uzbekistan)
- [Vietnam](https://apptail.io/app/karls-mortgage-calculator-mMXd/vietnam)
- [Namibia](https://apptail.io/app/karls-mortgage-calculator-mMXd/namibia)
- [Nigeria](https://apptail.io/app/karls-mortgage-calculator-mMXd/nigeria)
- [Nicaragua](https://apptail.io/app/karls-mortgage-calculator-mMXd/nicaragua)
- [Netherlands](https://apptail.io/app/karls-mortgage-calculator-mMXd/netherlands)
- [Norway](https://apptail.io/app/karls-mortgage-calculator-mMXd/norway)
- [Nepal](https://apptail.io/app/karls-mortgage-calculator-mMXd/nepal)
- [Oman](https://apptail.io/app/karls-mortgage-calculator-mMXd/oman)
- [Panama](https://apptail.io/app/karls-mortgage-calculator-mMXd/panama)
- [Peru](https://apptail.io/app/karls-mortgage-calculator-mMXd/peru)
- [Pakistan](https://apptail.io/app/karls-mortgage-calculator-mMXd/pakistan)
- [Poland](https://apptail.io/app/karls-mortgage-calculator-mMXd/poland)
- [Portugal](https://apptail.io/app/karls-mortgage-calculator-mMXd/portugal)
- [Qatar](https://apptail.io/app/karls-mortgage-calculator-mMXd/qatar)
- [Romania](https://apptail.io/app/karls-mortgage-calculator-mMXd/romania)
- [Russia](https://apptail.io/app/karls-mortgage-calculator-mMXd/russia)
- [Saudi Arabia](https://apptail.io/app/karls-mortgage-calculator-mMXd/saudi-arabia)
- [Sweden](https://apptail.io/app/karls-mortgage-calculator-mMXd/sweden)
- [Slovakia](https://apptail.io/app/karls-mortgage-calculator-mMXd/slovakia)
- [Macao SAR China](https://apptail.io/app/karls-mortgage-calculator-mMXd/macau)
- [Angola](https://apptail.io/app/karls-mortgage-calculator-mMXd/angola)
- [Jamaica](https://apptail.io/app/karls-mortgage-calculator-mMXd/jamaica)
- [Honduras](https://apptail.io/app/karls-mortgage-calculator-mMXd/honduras)
- [Jordan](https://apptail.io/app/karls-mortgage-calculator-mMXd/jordan)
- [Venezuela](https://apptail.io/app/karls-mortgage-calculator-mMXd/venezuela)
- [Barbados](https://apptail.io/app/karls-mortgage-calculator-mMXd/barbados)
- [Cayman Islands](https://apptail.io/app/karls-mortgage-calculator-mMXd/cayman-islands)

---

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