Kalc app for iPhone and iPad

Kalc is a simple, extremely user-friendly unit converter and calculator app for your everyday life.

• Beautiful, simple, minimal and flat design.
• Tap and get the result immediately.
• Reuse past search history up to 100 results.
• Hold the number to copy & paste.
• Swipe the result left to clear.
• Swipe the histories right to clear all.

• Over 88 units in 8 categories.
• 8 shortcuts for practical unit conversion.
• Reverse by tapping the other side of the unit.
• Easy-to-use editable simple string calculation.

• 20 well-selected flat colors to fit your fashion.
• Swipe the keypad up to open the color selector.
• Swipe the color selector to change the color.
• Hold the color selector to view all colors.

• Swipe the keypad down to open support menu.

• Supported units (*=UK)
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mm, cm, m, km,
in, ft, yd, mi, nmi, pt, pc,
寸, 尺, 丈, 間, 町, 里, 海里
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mm2, cm2, m2, km2,
sqin, sqft, sqyd, sqmi, ha, acre,
坪, 畝, 反, 町
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mg, g, kg, tonne,
oz, lb, stone, ton, ton*,
匁, 両, 斤, 貫
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cc, ml, dl, l, cm3, m3, in3, ft3,
tsp, tbsp, oz, cp, pt, qt, gal,
tsp*, tbsp*, oz*, cp*, pt*, qt*, gal*,
合, 升, 斗, 石
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C, F, K
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ms, s, min, hour, day, week, year
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m/s, km/h, fps, mph, kt
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16:9, 4:3, 1:1.6, 1:1.4
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We appreciate your feedback greatly =)

[email protected]

Designed by YUTA OKAJIMA
Developed by RAKUTO FURUTANI