Online Feet to Inches Converter (with Fractions)

1 foot = 12 inches

12 inches = 1 foot
1 Foot = 12 Inches

How to Convert Feet to Inches and Back

Lengths and distances can be tricky to manage when moving between different scales of the imperial and US customary systems. This real-time converter simplifies the process. To switch from feet to inches, drop your value into the foot field, and the math updates instantly. If you need the reverse calculation—inches to feet—just use the right-hand input field instead.

💡 Processing Fractions and Mixed Numbers: Most online conversion widgets fail when you feed them non-decimal formats. Our system handles raw fractions natively. Whether you are dealing with a clean proper fraction (like 3/4), an improper fraction (like 11/8), or a mixed number with a whole and fractional part combined (such as 1 1/2), simply type it in. The backend handles the division instantly to deliver an exact inch equivalent without manual pre-conversion.

The layout adapts seamlessly across desktop setups, tablets, and smartphones. Keep JavaScript active in your browser preferences to ensure the equations render and update as you type.


Feet to Inches Formula & Real-World Examples

The relationship between these two units is fixed by definition within both the US Customary and British Imperial systems, establishing a clean ratio for all linear measurements. The conversion ratio is exactly 12 inches per foot.

  • Feet to Inches formula: Multiply the known value in feet by the 12 baseline multiplier.
    Inches = Feet × 12
  • Inches to Feet formula: Take the length in inches and divide it by 12 (or scale it by multiplying by 0.08333333).
    Feet = Inches ÷ 12

Practical Calculation Examples:

  1. Standard base conversion: 1 foot × 12 brings you to exactly 12 inches.
  2. Direct imperial switch: 1 inch ÷ 12 yields roughly 0.0833333333 feet.
  3. Handling fractional stock: If a layout plan specifies 2 1/2 feet of material, the logic parses this as 2.5. Running the multiplication (2.5 × 12) outputs exactly 30 inches.

Comprehensive Unit Conversion Charts

Workspace requirements often demand more than just swapping feet and inches. To save you from refreshing the page or running multiple searches, our tool populates broader data matrixes on the fly. Look toward the lower section of the interface to view real-time calculations mapped out across alternative systems:

  • The Metric Matrix: Instant readouts across micrometers (µm), millimeters (mm), centimeters (cm), decimeters (dm), standard meters (m), hectometers (hm), decameters (dam), and kilometers (km).
  • Imperial, US Customary & Survey Scales: Equivalent values scaled for feet (ft), yards (yd), miles (mi), alongside specialized historical surveyor increments like leagues, links, furlongs, and perches (rods).

These auxiliary breakdowns help reference distinct technical domains simultaneously, ensuring fluid project planning.

⚠️ Note on U.S. Survey Feet: Do not confuse the standard international foot used in this calculator (exactly 0.3048 meters) with the historical U.S. survey foot (approximately 0.30480061 meters). While the tiny difference of 2 parts per million is imperceptible in daily life, it introduces severe errors when scaling large topographic maps or geodetic surveys over hundreds of miles.

If you want to dive deeper into the history, legal standards, and global adoption of these units, you can examine the official data on the origins of the US survey foot on NIST. For alternative conversions, feel free to use our secondary tools located right below the main application.

Note on bidirectional calculation: While this specific tool is fully bidirectional and handles both directions with equal speed and precision, you can also use our dedicated page specifically optimized for converting inches to feet. Whichever page you choose, the calculation remains flawless and supports fractions natively.


Frequently Asked Questions (FAQ)

What is 1 foot in inches exactly?

Per the official standards, exactly 1 foot translates to 12 inches. This is an absolute, fixed definition used worldwide across science, manufacturing, textiles, and daily measurements.

Can I type fractions like 3/4 or 1 1/2 directly into the input fields?

Yes. The script interprets standard fraction formats, improper ratios, and mixed-number integers. When entering a mixed fraction, separate the whole number from the fractional segment using a single space (e.g., type 1 1/2 or 3 3/4) for an instant decimal output.

How do you manually convert yards to inches without a widget?

You can solve this manually by multiplying your total feet by 12. For instance, if you have a 3-foot segment of wood, multiplying 3 by 12 results in exactly 36 inches.

What are the imperial dimensions of a standard 6-foot tall doorway in inches?

A standard structural doorway measuring 6 feet in height translates to exactly 72 inches (calculated as 6 multiplied by 12).


In the conversion table, you can find value inches for every foot from range 1-100, step 0.1 (ft)

Feet (ft):0.10.20.30.40.50.60.70.80.91.01.11.21.31.41.51.61.71.81.92.02.12.22.32.42.52.62.72.82.93.03.13.23.33.43.53.63.73.83.94.04.14.24.34.44.54.64.74.84.95.05.15.25.35.45.55.65.75.85.96.06.16.26.36.46.56.66.76.86.97.07.17.27.37.47.57.67.77.87.98.08.18.28.38.48.58.68.78.88.99.09.19.29.39.49.59.69.79.89.910.010.110.210.310.410.510.610.710.810.911.011.111.211.311.411.511.611.711.811.912.012.112.212.312.412.512.612.712.812.913.013.113.213.313.413.513.613.713.813.914.014.114.214.314.414.514.614.714.814.915.015.115.215.315.415.515.615.715.815.916.016.116.216.316.416.516.616.716.816.917.017.117.217.317.417.517.617.717.817.918.018.118.218.318.418.518.618.718.818.919.019.119.219.319.419.519.619.719.819.920.020.120.220.320.420.520.620.720.820.921.021.121.221.321.421.521.621.721.821.922.022.122.222.322.422.522.622.722.822.923.023.123.223.323.423.523.623.723.823.924.024.124.224.324.424.524.624.724.824.925.025.125.225.325.425.525.625.725.825.926.026.126.226.326.426.526.626.726.826.927.027.127.227.327.427.527.627.727.827.928.028.128.228.328.428.528.628.728.828.929.029.129.229.329.429.529.629.729.829.930.030.130.230.330.430.530.630.730.830.931.031.131.231.331.431.531.631.731.831.932.032.132.232.332.432.532.632.732.832.933.033.133.233.333.433.533.633.733.833.934.034.134.234.334.434.534.634.734.834.935.035.135.235.335.435.535.635.735.835.936.036.136.236.336.436.536.636.736.836.937.037.137.237.337.437.537.637.737.837.938.038.138.238.338.438.538.638.738.838.939.039.139.239.339.439.539.639.739.839.940.040.140.240.340.440.540.640.740.840.941.041.141.241.341.441.541.641.741.841.942.042.142.242.342.442.542.642.742.842.943.043.143.243.343.443.543.643.743.843.944.044.144.244.344.444.544.644.744.844.945.045.145.245.345.445.545.645.745.845.946.046.146.246.346.446.546.646.746.846.947.047.147.247.347.447.547.647.747.847.948.048.148.248.348.448.548.648.748.848.949.049.149.249.349.449.549.649.749.849.950.050.150.250.350.450.550.650.750.850.951.051.151.251.351.451.551.651.751.851.952.052.152.252.352.452.552.652.752.852.953.053.153.253.353.453.553.653.753.853.954.054.154.254.354.454.554.654.754.854.955.055.155.255.355.455.555.655.755.855.956.056.156.256.356.456.556.656.756.856.957.057.157.257.357.457.557.657.757.857.958.058.158.258.358.458.558.658.758.858.959.059.159.259.359.459.559.659.759.859.960.060.160.260.360.460.560.660.760.860.961.061.161.261.361.461.561.661.761.861.962.062.162.262.362.462.562.662.762.862.963.063.163.263.363.463.563.663.763.863.964.064.164.264.364.464.564.664.764.864.965.065.165.265.365.465.565.665.765.865.966.066.166.266.366.466.566.666.766.866.967.067.167.267.367.467.567.667.767.867.968.068.168.268.368.468.568.668.768.868.969.069.169.269.369.469.569.669.769.869.970.070.170.270.370.470.570.670.770.870.971.071.171.271.371.471.571.671.771.871.972.072.172.272.372.472.572.672.772.872.973.073.173.273.373.473.573.673.773.873.974.074.174.274.374.474.574.674.774.874.975.075.175.275.375.475.575.675.775.875.976.076.176.276.376.476.576.676.776.876.977.077.177.277.377.477.577.677.777.877.978.078.178.278.378.478.578.678.778.878.979.079.179.279.379.479.579.679.779.879.980.080.180.280.380.480.580.680.780.880.981.081.181.281.381.481.581.681.781.881.982.082.182.282.382.482.582.682.782.882.983.083.183.283.383.483.583.683.783.883.984.084.184.284.384.484.584.684.784.884.985.085.185.285.385.485.585.685.785.885.986.086.186.286.386.486.586.686.786.886.987.087.187.287.387.487.587.687.787.887.988.088.188.288.388.488.588.688.788.888.989.089.189.289.389.489.589.689.789.889.990.090.190.290.390.490.590.690.790.890.991.091.191.291.391.491.591.691.791.891.992.092.192.292.392.492.592.692.792.892.993.093.193.293.393.493.593.693.793.893.994.094.194.294.394.494.594.694.794.894.995.095.195.295.395.495.595.695.795.895.996.096.196.296.396.496.596.696.796.896.997.097.197.297.397.497.597.697.797.897.998.098.198.298.398.498.598.698.798.898.999.099.199.299.399.499.599.699.799.899.9100.0
Inches (in):1.22.43.64.86.07.28.49.610.812.013.214.415.616.818.019.220.421.622.824.025.226.427.628.830.031.232.433.634.836.037.238.439.640.842.043.244.445.646.848.049.250.451.652.854.055.256.457.658.860.061.262.463.664.866.067.268.469.670.872.073.274.475.676.878.079.280.481.682.884.085.286.487.688.890.091.292.493.694.896.097.298.499.6100.8102.0103.2104.4105.6106.8108.0109.2110.4111.6112.8114.0115.2116.4117.6118.8120.0121.2122.4123.6124.8126.0127.2128.4129.6130.8132.0133.2134.4135.6136.8138.0139.2140.4141.6142.8144.0145.2146.4147.6148.8150.0151.2152.4153.6154.8156.0157.2158.4159.6160.8162.0163.2164.4165.6166.8168.0169.2170.4171.6172.8174.0175.2176.4177.6178.8180.0181.2182.4183.6184.8186.0187.2188.4189.6190.8192.0193.2194.4195.6196.8198.0199.2200.4201.6202.8204.0205.2206.4207.6208.8210.0211.2212.4213.6214.8216.0217.2218.4219.6220.8222.0223.2224.4225.6226.8228.0229.2230.4231.6232.8234.0235.2236.4237.6238.8240.0241.2242.4243.6244.8246.0247.2248.4249.6250.8252.0253.2254.4255.6256.8258.0259.2260.4261.6262.8264.0265.2266.4267.6268.8270.0271.2272.4273.6274.8276.0277.2278.4279.6280.8282.0283.2284.4285.6286.8288.0289.2290.4291.6292.8294.0295.2296.4297.6298.8300.0301.2302.4303.6304.8306.0307.2308.4309.6310.8312.0313.2314.4315.6316.8318.0319.2320.4321.6322.8324.0325.2326.4327.6328.8330.0331.2332.4333.6334.8336.0337.2338.4339.6340.8342.0343.2344.4345.6346.8348.0349.2350.4351.6352.8354.0355.2356.4357.6358.8360.0361.2362.4363.6364.8366.0367.2368.4369.6370.8372.0373.2374.4375.6376.8378.0379.2380.4381.6382.8384.0385.2386.4387.6388.8390.0391.2392.4393.6394.8396.0397.2398.4399.6400.8402.0403.2404.4405.6406.8408.0409.2410.4411.6412.8414.0415.2416.4417.6418.8420.0421.2422.4423.6424.8426.0427.2428.4429.6430.8432.0433.2434.4435.6436.8438.0439.2440.4441.6442.8444.0445.2446.4447.6448.8450.0451.2452.4453.6454.8456.0457.2458.4459.6460.8462.0463.2464.4465.6466.8468.0469.2470.4471.6472.8474.0475.2476.4477.6478.8480.0481.2482.4483.6484.8486.0487.2488.4489.6490.8492.0493.2494.4495.6496.8498.0499.2500.4501.6502.8504.0505.2506.4507.6508.8510.0511.2512.4513.6514.8516.0517.2518.4519.6520.8522.0523.2524.4525.6526.8528.0529.2530.4531.6532.8534.0535.2536.4537.6538.8540.0541.2542.4543.6544.8546.0547.2548.4549.6550.8552.0553.2554.4555.6556.8558.0559.2560.4561.6562.8564.0565.2566.4567.6568.8570.0571.2572.4573.6574.8576.0577.2578.4579.6580.8582.0583.2584.4585.6586.8588.0589.2590.4591.6592.8594.0595.2596.4597.6598.8600.0601.2602.4603.6604.8606.0607.2608.4609.6610.8612.0613.2614.4615.6616.8618.0619.2620.4621.6622.8624.0625.2626.4627.6628.8630.0631.2632.4633.6634.8636.0637.2638.4639.6640.8642.0643.2644.4645.6646.8648.0649.2650.4651.6652.8654.0655.2656.4657.6658.8660.0661.2662.4663.6664.8666.0667.2668.4669.6670.8672.0673.2674.4675.6676.8678.0679.2680.4681.6682.8684.0685.2686.4687.6688.8690.0691.2692.4693.6694.8696.0697.2698.4699.6700.8702.0703.2704.4705.6706.8708.0709.2710.4711.6712.8714.0715.2716.4717.6718.8720.0721.2722.4723.6724.8726.0727.2728.4729.6730.8732.0733.2734.4735.6736.8738.0739.2740.4741.6742.8744.0745.2746.4747.6748.8750.0751.2752.4753.6754.8756.0757.2758.4759.6760.8762.0763.2764.4765.6766.8768.0769.2770.4771.6772.8774.0775.2776.4777.6778.8780.0781.2782.4783.6784.8786.0787.2788.4789.6790.8792.0793.2794.4795.6796.8798.0799.2800.4801.6802.8804.0805.2806.4807.6808.8810.0811.2812.4813.6814.8816.0817.2818.4819.6820.8822.0823.2824.4825.6826.8828.0829.2830.4831.6832.8834.0835.2836.4837.6838.8840.0841.2842.4843.6844.8846.0847.2848.4849.6850.8852.0853.2854.4855.6856.8858.0859.2860.4861.6862.8864.0865.2866.4867.6868.8870.0871.2872.4873.6874.8876.0877.2878.4879.6880.8882.0883.2884.4885.6886.8888.0889.2890.4891.6892.8894.0895.2896.4897.6898.8900.0901.2902.4903.6904.8906.0907.2908.4909.6910.8912.0913.2914.4915.6916.8918.0919.2920.4921.6922.8924.0925.2926.4927.6928.8930.0931.2932.4933.6934.8936.0937.2938.4939.6940.8942.0943.2944.4945.6946.8948.0949.2950.4951.6952.8954.0955.2956.4957.6958.8960.0961.2962.4963.6964.8966.0967.2968.4969.6970.8972.0973.2974.4975.6976.8978.0979.2980.4981.6982.8984.0985.2986.4987.6988.8990.0991.2992.4993.6994.8996.0997.2998.4999.61000.81002.01003.21004.41005.61006.81008.01009.21010.41011.61012.81014.01015.21016.41017.61018.81020.01021.21022.41023.61024.81026.01027.21028.41029.61030.81032.01033.21034.41035.61036.81038.01039.21040.41041.61042.81044.01045.21046.41047.61048.81050.01051.21052.41053.61054.81056.01057.21058.41059.61060.81062.01063.21064.41065.61066.81068.01069.21070.41071.61072.81074.01075.21076.41077.61078.81080.01081.21082.41083.61084.81086.01087.21088.41089.61090.81092.01093.21094.41095.61096.81098.01099.21100.41101.61102.81104.01105.21106.41107.61108.81110.01111.21112.41113.61114.81116.01117.21118.41119.61120.81122.01123.21124.41125.61126.81128.01129.21130.41131.61132.81134.01135.21136.41137.61138.81140.01141.21142.41143.61144.81146.01147.21148.41149.61150.81152.01153.21154.41155.61156.81158.01159.21160.41161.61162.81164.01165.21166.41167.61168.81170.01171.21172.41173.61174.81176.01177.21178.41179.61180.81182.01183.21184.41185.61186.81188.01189.21190.41191.61192.81194.01195.21196.41197.61198.81200.0
All conversions of 1 foot in the Metric System Units
UnitValue
1 (ft) to kilometers= 0.00030480000000000004
1 (ft) to hectometers= 0.003048
1 (ft) to decameters= 0.030479999999999997
1 (ft) to meters= 0.3048
1 (ft) to decimeters= 3.048
1 (ft) to centimeters= 30.48
1 (ft) to millimeters= 304.8
1 (ft) to micrometers microns= 304800.0
1 (ft) to nanometers= 304800000.0
All conversions of 1 foot in the US Survey Units
UnitValue
1 (ft) to survey inches= 11.999976000048001
1 (ft) to survey feet= 0.999998000004
1 (ft) to survey links= 1.5151484848545456
1 (ft) to survey rods perches poles= 0.06060593939418182
1 (ft) to survey chains= 0.015151484848545454
1 (ft) to survey furlongs stade= 0.0015151484848545454
1 (ft) to survey statute miles= 0.00018939356060681823
1 (ft) to survey leagues= 0.00006313118686893937
All conversions of 1 foot in the International Units
UnitValue
1 (ft) to points= 864.0
1 (ft) to picas= 72.0
1 (ft) to inches= 12.0
1 (ft) to feet= 1.0
1 (ft) to yards= 0.3333333333333333
1 (ft) to miles= 0.00018939393939393937
All conversions of 1 foot in the Astronomical Units
UnitValue
1 (ft) to astronomical unit= 0.00000000000203746212
1 (ft) to light-second= 0.00000000101670336216
1 (ft) to light-minute= 0.000000000016945056
1 (ft) to light-hour= 0.0000000000002824176
1 (ft) to light-day= 0.00000000000001176744
1 (ft) to light-year= 0.00000000000000003216
1 (ft) to parsec= 0.00000000000000000984