01
Calculate the way you measure.
Enter feet, inches and fractional inches directly. Add, subtract, multiply and divide without converting first.
7' 5 3/8" + 2' 4 1/2" = 9' 9 7/8"
9' 9 7/8"Exact jobsite result
ft / in / fraction
BuildMate CalcBUILT FOR THE JOBSITE
BuildMate Calc
Feet, Inches & Fractions Calculator
Construction math made for real measurements.
Enter feet, inches and fractions exactly as you measure them. Convert units, split lengths, find centers, and keep every result ready for the next task.
✓ Feet, inches & fractions✓ Imperial ↔ Metric✓ Built for jobsite math✓ One-time Pro unlock
LIVE RESULT9' 9 7/8"Exact to 1/16"
BuildMate Calc
7' 5 3/8" + 2' 4 1/2"Real construction math
→
9' 9 7/8"Ready to use
No converting to decimals first.
PLATFORMBuilt for iPhone
OFFLINECore calculations on device
PROOne-time ¥4.99 unlock
PRIVACYNo account required
THE PROBLEM
Stop converting jobsite measurements in your head.
An ordinary calculator only knows 12 + 8. On a real jobsite, you deal with 7' 5 3/8" + 2' 4 1/2".
ORDINARY CALCULATOR
(7.4479 × 12) + (2.375 × 12)
Convert to decimals. Check the result. Convert it back.
BUILDMATE CALC
7' 5 3/8" + 2' 4 1/2"
Enter the way you measure. Get the way you build.
= 9' 9 7/8"THE TOOLKIT
Less setup. More work done.
Purpose-built tools for the measurements that come up on real jobs, with clear results you can trust and reuse.
02
Imperial and metric. One tap apart.
Move between ft/in, feet, inches, millimeters, centimeters and meters with a result you can use immediately.
2400 mm → 7' 10 7/16"
2400 mmInstant conversion
imperial ↔ metric
03
Common jobsite math in one tap.
Half, Double, Split and Center turn repetitive measurements into quick, obvious actions.
10' 4 1/2" → 5
5Mark positions included
automatic marks
04
Your measurements don’t disappear.
Search, copy, reuse, save or delete a calculation when the job moves on.
History / Recent / Saved
SavedReady when you need it
search · copy · reuse
HOW IT WORKS
From measurement to answer in seconds.
01
Enter your measurement
Type the measurement exactly as it appears on your plans or tape.
02
Choose what you need
Calculate, Convert, Split or Center from a purpose-built tool.
03
Use the result
Copy it, save it, share it, or keep calculating without losing your place.
FIELD NOTES
Made for real jobsite tasks.
Small moments add up. The right tool removes friction from each one.
01
Cut material evenly
Split lumber, trim or framing into equal sections.
02
Find the center
Get the exact midpoint for installation and layout.
03
Convert drawings
Move metric plans to imperial measurements quickly.
04
Reuse measurements
Find previous calculations without doing the same math twice.
DESIGNED FOR FAST WORK
Everything where your hand expects it.
BUILT FOR REAL MEASUREMENTSOne tool.Everyday answers.
Calculate · Convert · Split · Save
NO SUBSCRIPTION
0122436
YOUR WORKFLOW
Use the calculator your way.
Choose a traditional tool feel or a clean mobile interface. The app is designed around the work, not one aesthetic.
Skeuomorphic
Familiar controls with tactile depth.
Modern
Focused layout for fast mobile work.
PRO, WHEN YOU NEED IT
Start simple. Unlock more.
Download for free. Core construction math is included; unlock Pro with a one-time ¥4.99 purchase.
FREE
Everything you need to start calculating.
- Basic construction calculations
- Feet / inches / fractions
- Core unit conversion
- Everyday jobsite tools
BUILDMATE CALC PRO
More precision. More history. Less repetition.
- Unlimited History
- 1/32" and 1/64" precision
- Advanced Split and Center tools
- Priority support
FAQ
Clear answers before you start.
READY WHEN YOU ARE
Measure. Calculate. Get back to work.
BuildMate Calc keeps jobsite math clear, quick and ready for the next step.
Coming soon on the App Store↗